24277 + Interview Questions in Biology in Class 12 Page 430 InterviewSolution

21451.	Question : Assertion :- Agrobacterium tumefaciens strain synthesises 'Opines' for energy source. Reason :- Opines are derivatives of glycine
Answer» If both assertion and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is FALSE. If both assertion and reason are false. Answer :C

Discussion

21452.	Question : Assertion: AIDS can be diagnosed immediately after HIV infection by ELISA test. Reason: Large number of antibodies are formed spontaneously.
Answer» If both Assertion and Reason are TRUE and the Reason is the CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. ANSWER :D

Discussion

21453.	Question : Assertion (A):HIV is a DNA virus. Reason (R ):HIV belongs to genus Lentivirus
Answer» Both (A) and (R are TRUE .(R) EXPLAINS(A) (A) is true (R ) is FALSE Both(A) is true (R ) are flase (A) is false (R ) is true Answer :A::D

Discussion

21454.	Question :Assertion: Agrobacterium tumefaciens is popular in genetic engineering because this bacterium is associated with roots of all cereals and pulse crops.Reason: A gene is incorporated in the bacterial chromosomal genome gets automatically transferred to the crop with which the bacterium is associated.
Answer» ANSWER :D

Discussion

21455.	Question : Assertion: Agar is used to solidify the medium Reason: Higher concentration of agar makes the medium hard and diffusion of nutrients in plant tissues may be checked.
Answer» If both ASSERTION and Reason are true and the Reason is the CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true and the Reason is not the Reason is not the correct explanation of the assertion If assertion is true but the Reason are false If both Assertion and Reason are false Answer :B

Discussion

21456.	Question : Assertion: Age, sex, structure of human popuJation in France and Sweden forms a steep pyramid. Reason: To countries like Sudan and Lndia, the population is increasing at a rapid rate.
Answer» If both Assertion and REASON are true and the Reason is the CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion. If Assertion is true but the Reason is false If both Assertion and Reason are false. Solution :If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.

Discussion

21457.	Question : Assertion: After implantation, finger-like projections appear on the trophoblast called chorionic villi. Reason: Chorionic villi are surrounded by the uterine tissue and maternal blood.
Answer» SOLUTION :After implanation, finger-like projections appear on the trophoblast called chorionic villi which are SURROUNDED by the uterine tissue and maternal blood. The chronic villi, and uterine tissue become intergitated with each other and jointify form a STRUCTURAL and functional unit between DEVELOPING embryo (fetus) and maternal body called placenta

Discussion

21458.	Question :Assertion :- Advance stage of cancer shows contact inhibition. Reason :- Property of contact inhibition forms cancer most dreaded condition.
Answer» If both Assertion & Reason are True & the Reason is a correct EXPLANATION of the Assertion. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion. If Assertion is True but the Reason is FALSE. If both Assertion & Reason are False. Answer :D

Discussion

21459.	Question : Assertion: After drinking, alcohol is changed to glucose in liver. Reason: Liver cells are able to form glucose from alcohol by reverse fermentation.
Answer» If both Assertion and Reason are true and the Reason is the correct EXPLANATION of the Assertion. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion. If Assertion is true but the Reason is FALSE. If both Assertion and Reason are false. ANSWER :D

Discussion

21460.	Question : Assertion: Adaptive ability is inherited. Reason: Fitness is the end result of the ability to adoapt and get selected by the nature.
Answer» SOLUTION :N//A

Discussion

21461.	Question : Assertion. Adenine cannot pair with cytosine. Reason. Adenine and cytosine do not have a perfect match between hydrogen donor and hydrogen acceptor sites. Hence, they cannot pair.
Answer» If both A and R are TRUE and R is the correct EXPLANATION of A. If both A and R are true but R is not the correct explanation of A. If A is true but R is FALSE. If both A and R are false. Answer :A

Discussion

21462.	Question : Assertion: Adenoma is sarcoma. Reason: Adenoma is located in the adipose tissue.
Answer» (a) If both Assertion and Reason are TRUE and the Reason is the CORRECT EXPLANATION of the Assertion. (b) If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion. (c) If Assertion is true but the Reason is FALSE. (d) If both Assertion and Reason are false. Answer :D

Discussion

21463.	Question : Assertion (A) : Zea mays is monocotylednous plant. Reason (R) : Shield shaped cotyledon is called scutellum.
Answer» A is CORRECT R is incorrect . R explains A Both A and R are incorrect Both A and R are correct . R does not explain A. Answer :B

Discussion

21464.	Question : Assertion: A woman passes hCG in the urine during pregnancy. Reason: Excess hormones are excreted by kidneys. hCG in the urine is the basis for pregnancy.
Answer» If both ASSERTION and REASON are TRUE and the Reason is the CORRECT EXPLANATION of the Assertion. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion. If Assertion is true but the Reason is false. If both Assertion and Reason are false. Answer :A

Discussion

21465.	Question : Assertion (A): Variations help the individuals to adapt themselves to the changing environment. Reason (R ) : It provides the genetic material for natural selection.
Answer» ASSERTION is TRUE and Reason is correct EXPLANANTION of Assertion. Assertion and Reason is true but Reason is not correct EXPLANATION of Assertion. Assertion is true and Reason is false. Both Assertion and Reason are false. Solution :Assertion is true and Reason is correct explanantion of Assertion.

Discussion

21466.	Question : Assertion: Turmeric fights various kinds of cancer. Reason: Curcumin is an anti-oxidant present in turmeric.
Answer» A is RIGHT R is WRONG Both A and R are wrong A is wrong R is right A and R are right R EXPLAINS A. Answer :D

Discussion

21467.	Question : Assertion (A): The pyramid of number in a parasite ecosystem is always upright. Reason (R) : It starts with a grassland.
Answer» Assertion is true and REASON is correct EXPLANATION of Assertion, Assertion and Reason is true but Reason is not correct explanation of Assertion. Assertion is true and Reason is FALSE. Both Assertion and Reason are false. Answer :D

Discussion

21468.	Question : Assertion (A) : The age-sex structure of human population in countries like France and Germany gives a steep pyramid. Reason (R) : In countries like Sudan and India the population is increasing at a rapid rate.
Answer» Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) is not the correct explanation of (A) (A) is true STATEMENT but (R) is false Both (A) and (R) are false Answer :B

Discussion

21469.	Question : Assertion (A): The acrosome of the sperm cell contains sperm lysin. Reason (R): Sperm lysin destroys the deformed sperm cells.
Answer» a) R EXPLAINS A. b) A is RIGHT R is WRONG. c) A and R are right. R does not explains A. d) Both A and R are wrong. Solution : A is right R is wrong.

Discussion

21470.	Question : Assertion (A) : Test cross is done between F_2 hybrid with F_1 recessive Reason (R) : It helps to identify the homozygosity of hybrids.
Answer» A and R are correct R EXPLAINS A A and R are INCORRECT A is correct R is incorrect A is incorrect R is correct ANSWER :B

Discussion

21471.	Question : Assertion (A): Syngamy refers to the fusion of two haploid gametes. Reason (R): Syngamy leads to zygote formation.
Answer» a) A and R are CORRECT. b) A and R are incorrect. c) R is not the RIGHT EXPLANATION for A d) A is correct but R is incorrect. Solution :A and R are correct.

Discussion

21472.	Question : Assertion (A) : Sterilization helps to overcome microbes. Reason (R ) : Explants are autoclaved.
Answer» a) Both A and R are CORRECT but R is not a correct EXPLANATION to A b) R explains A c) A is correct R is incorrect d) Both A and R are incorrect Answer :C

Discussion

21473.	Question : Assertion (A): Social forestry refers to management of forests and afforestation on barren lands. Reason (R): Afforestation involves the cutting of trees.
Answer» a) A is CORRECT R is INCORRECT. b) A is incorrect R is correct. c) R EXPLAINS A. d) Both A and R are incorrect Answer :A

Discussion

21474.	Question : Assertion (A): spleen is a primary lymphoid organ Reason (R ):Primary lymphoid organs trap antigen and destroy them.
Answer» Both (A) and (R are TRUE .(R) explains(A) (A) is true (R ) is false Both(A) and (R ) are false (A) is false (R ) is true Answer :A::B::C::D

Discussion

21475.	Question : Assertion (A): Snake is a stenotherm. Reason (R): Organism can tolerate narrow temperature fluctuations.
Answer» Both A and R are CORRECT R EXPLAIN A A is correct R is incorrect R doesnot explain A Both A and R are incorrect SOLUTION :Both A and R are correct R explain A

Discussion

21476.	Question : Assertion: A single mutation may produce a new species Reason: Mutations cause variation in chromosomes and genes and are,therefore, inheritable .
Answer» If both Assertion and REASON are TRUE and Reason is the CORRECT explanation of Assertion If both Assertion and Reason are true and Reason is not the correct explanation of Assertion If Assertion is true but Reason is false. If both Assertion and Reason are false ANSWER :A

Discussion

21477.	Question : Assertion (A): SLF promotes vigorous growth and provide resistance against diseases. Reason (R): SLF is made from kelp containing more then 70 minerals.
Answer» (A) Both A and R are TRUE. R explains A. (B) A is true R is fales (c) A is fales R is true (d) Both A and R is fales Answer :A

Discussion

21478.	Question : Assertion (A) : Rhytidome is the structural defense by plants. Reason (R) : Rhytidome is composed of multiple layers of suberized periderm.
Answer» Both Assertion and Reason are TRUE and Reason is correct EXPLANATION of Assertion. Both Assertion and Reason are true and Reason is not correct explanation of Assertion. Assertion is FALSE and Reason is true. Both Assertion and Reason are false. SOLUTION :Assertion and Reason is true and Reason is correct explanation of Assertion.

Discussion

21479.	Question : Assertion (A) : Single cell protein from spirulina is utilized in food industries . Reason (R) : Single-cell proteins can cause allergy .
Answer» Both ASSERTION and REASON are TRUE and Reason is correct explanation of Assertion . Both Assertion and Reason are true and Reason is not correct explanation of Assertion . Both Assertion and Reason are true . Both Assertion and Reason are false . SOLUTION :N/A

Discussion

21480.	Question : Assertion (A) : Ruminate endosperm has irregular surface. Reason (R ): the best example of this is Areca Catechu.
Answer» SOLUTION :Both ASSERTION and REASON are true but reason is not CORRECT explanation of Assertion

Discussion

21481.	Question : Assertion (A): Semi-conservative model was proposed by Hershey and Chase. Reason (R): The daughter DNA contains only new strands.
Answer» Both A and R are incorrect A is correct R is incorrect R EXPLAINS A A is incorrect R is correct Solution :Both A and R are incorrect

Discussion

21482.	Question : Assertion (A) : Release factors recognize the initiation codons. Reason (R) : UAA is the initiation codon.
Answer» ASSERTION is TRUE and Reason is correct EXPLANATION of Assertion. Assertion and Reason is true but Reason is not correct explanation of Assertion. Assertion is true and Reason is false. Both Assertion and Reason are false. ANSWER :d

Discussion

21483.	Question : Assertion (A): Pyramid of energy transfer is upright. Reason (R): During the energy transfer at successive trophic levels from producers there will be gradual decrease
Answer» Both A and R arewrong A is RIGHT R is wrong R explains A A is right R is not the CORRECT EXPLANATION for A Answer :C

Discussion

21484.	Question : Assertion : A pulse wave function is given byy = (4 ) /(( 2 x+5 t ) ^ 2+2 ) ,is propagates in negative x-direction. Reason : The given wave function is of the form y = f(kx + omegat) , which represents a travelling wave in negative x-direction.
Answer» If both Assertion & REASON are TRUE & the Reason is a correct explanation of the Assertion. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion. If Assertion is True but the Reason is FALSE. If both Assertion & Reason are False. Answer :A

Discussion

21485.	Question : Assertion (A): Pure line varieties show homozygosity.Reason (R): Pure line species are obtained through cross pollination.
Answer» (a) Both A and R are true. R explains A. (b) A is true R is FALSE (C) A is FALES R is true (d) Both A and R is false Answer :B

Discussion

21486.	Question : Assertion (A) : Pseudomonas putida is utilized in the production of Biological hydrogen. Reason (R) : During photosynthesis , it releases oxygen.
Answer» Both A and R are WRONG . A is RIGHT R is wrong. R EXPLAINS A. A and R are right , R does not explain A. ANSWER :A

Discussion

21487.	Question : Assertion (A) : Protoplasts are cells devoid of cell wall. Reason (R ) : Secondary metabolites are synthesized by protoplasmic fusion.
Answer» Both A and R are correct but R is not a correct explanation to A R EXPLAINS A A is correct R is incorrect Both A and R are incorrect Answer :C

Discussion

21488.	Question : Assertion (A) Predation is an interspecific interaction with a feeding strategy. Reason (R ) Predation and their prey maintain fairly stable population through time and rarely one population become abundant or scarce.
Answer» Both A and R are TRUE and R is a CORRECT explanation of A Both A and R are true, but R is not a correct explanation of A A is true, but R is FALSE Both AAND R are false Answer :A

Discussion

21489.	Question : Assertion (A) : Primary metabolites produced for the maintenance of life process of microbes . Reason (R) : Secondary matabolites are not produced by plants .
Answer» Both ASSERTION and Reason are true and Reason is CORRECT explanation of Assertion . Both Assertion and Reason are true and Reason is not correct explanation of Assertion . Assertion is true and Reason is false. Both Assertion and Reason are false . SOLUTION :N/A

Discussion

21490.	Question : Assertion (A): Prosopis juliflora is native to Afganisthan. Reason (R): Alien species refers to non-native species.
Answer» A is correct R is INCORRECT. A is incorrect R is correct. R EXPLAINS A. Both A and R are incorrect Answer :B

Discussion

21491.	Question :Assertion .A.: Poultry keeping has become an important small scale industry. Reason .R.: Poultry keeping provides nutritive food in the form of eggs as well as adult animals.
Answer» A and R are TRUE and R is the correct explanation of A. A and R are true but R is not the correct explanation of A. A is true but R is FALSE. A and R are false. SOLUTION :A and R are true and R is the correct explanation of A.

Discussion

21492.	Question : Assertion (A) : Polyploidy is common in plants. Reason (R) : Polyploidy possess more than 2 basic sets of chromosomes.
Answer» A is TRUE R is false Both A and R are false A is true, R is not correct EXPLANATION for A R explains A ANSWER :D

Discussion

21493.	Question : Assertion : A population growing in a habitat with limited resources shows initially a lag phase, followed by phase of accelerated and deceleration and finally as asymptote, when the population density reaches the carrying capacity. Reason : In Verhulst-Pearl Logistic growth, plot of N (population density) at time (t) results in a sigmoid curve.
Answer» Solution :A population growing in a habitat with limited resources SHOWS initially a lag phase, followed by phases of acceleration and deceleration and FINALLY an asymptote, when thepopulationdenstiy reaches the carrying capacity. A plot of population density (N) in relation to time (t) results in a sigmoid CURVE. This type of population growth is called Verhulst-Pearl Logistic Growth and is described by the following equations:`(dN)/(dt)=rN((K-N)/(K))`Where N = Population density at time t r = Intrinsic rate of natural INCREASE and K = Carrying capacity.

Discussion

21494.	Question : Assertion :- A point object is placed at a distance of 26 cm from a convex mirror of focal length 26 cm. The image will form at infinity. Reason :- For above given system the equationgives position of image
Answer» If both ASSERTION & Reason are True & the Reason is a CORRECT explanation of the Assertion. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertion. If Assertion is True but the Reason is False. If both Assertion & Reason are False. Answer :D

Discussion

21495.	Question : Assertion (A): Pollenkitt is contributed by the tapetum. Reason (R ) : It is chiefly made of xanthophylls and phycobilin.
Answer» SOLUTION :ASSERTION is TRUE, REASON is FALSE

Discussion

21496.	Question : Assertion. A plant girdled upto best shows signs of degeneration of lower portion. Reason. Water transportation will cease
Answer» If both are TRUE but REASON being CORRECT explanation both true but reason is not correct explanation assertion is true but reason is wrong and both are wrong. Answer :C

Discussion

21497.	Question : Assertion (A) : Pleiotropic gene affects multiple traits Reason (R ) : ABO blood group is an example for Pleiotropism
Answer» A and R are correct R explains A A and R are INCORRECT A is correct R is incorrect A is incorrect R is correct Answer :C

Discussion

21498.	Question : Assertion (A): Plains and valleys are rich in vegetation Reason (R): Slow drain of surface water and better water retention is noticed.
Answer» A is true R is false R EXPLAINS A A and R are false A and R are true. But R DOESNOT explains A Solution :R explains A

Discussion

21499.	Question : Assertion .A.: Photosynthetic microbes produce H_2.Reason .R.: Microbes are able to convert solar energy in to fuel energy that can be stored.
Answer» A and R are TRUE and R is the CORRECT EXPLANATION of A. A and R are true but R is not the correct explanation of A. A is true but R is FALSE. A is false and R is true. Solution : A and R are true and R is the correct explanation of A.

Discussion

21500.	Question : Assertion : Photochemical smog is produced by nitrogen oxides. Reason : Vehicular pollution is a major source of nitrogen oxides.
Answer» Both (A) and (R) are TRUE and(R) is the correct explanation of (A) Both (A) and (R) are true but (R) is not the correct explanation of (A) (A) is true STATEMENT but (R) is false Both (A) and (R) are false Answer :C

Discussion

Explore topic-wise InterviewSolutions in .

Question : Assertion :- Agrobacterium tumefaciens strain synthesises 'Opines' for energy source. Reason :- Opines are derivatives of glycine

Question : Assertion: AIDS can be diagnosed immediately after HIV infection by ELISA test. Reason: Large number of antibodies are formed spontaneously.

Question : Assertion (A):HIV is a DNA virus. Reason (R ):HIV belongs to genus Lentivirus

Question : Assertion: Agar is used to solidify the medium Reason: Higher concentration of agar makes the medium hard and diffusion of nutrients in plant tissues may be checked.

Question : Assertion: Age, sex, structure of human popuJation in France and Sweden forms a steep pyramid. Reason: To countries like Sudan and Lndia, the population is increasing at a rapid rate.

Question : Assertion: After implantation, finger-like projections appear on the trophoblast called chorionic villi. Reason: Chorionic villi are surrounded by the uterine tissue and maternal blood.

Question :Assertion :- Advance stage of cancer shows contact inhibition. Reason :- Property of contact inhibition forms cancer most dreaded condition.

Question : Assertion: After drinking, alcohol is changed to glucose in liver. Reason: Liver cells are able to form glucose from alcohol by reverse fermentation.

Question : Assertion: Adaptive ability is inherited. Reason: Fitness is the end result of the ability to adoapt and get selected by the nature.

Question : Assertion. Adenine cannot pair with cytosine. Reason. Adenine and cytosine do not have a perfect match between hydrogen donor and hydrogen acceptor sites. Hence, they cannot pair.

Question : Assertion: Adenoma is sarcoma. Reason: Adenoma is located in the adipose tissue.

Question : Assertion (A) : Zea mays is monocotylednous plant. Reason (R) : Shield shaped cotyledon is called scutellum.

Question : Assertion: A woman passes hCG in the urine during pregnancy. Reason: Excess hormones are excreted by kidneys. hCG in the urine is the basis for pregnancy.

Question : Assertion (A): Variations help the individuals to adapt themselves to the changing environment. Reason (R ) : It provides the genetic material for natural selection.

Question : Assertion: Turmeric fights various kinds of cancer. Reason: Curcumin is an anti-oxidant present in turmeric.

Question : Assertion (A): The pyramid of number in a parasite ecosystem is always upright. Reason (R) : It starts with a grassland.

Question : Assertion (A) : The age-sex structure of human population in countries like France and Germany gives a steep pyramid. Reason (R) : In countries like Sudan and India the population is increasing at a rapid rate.

Question : Assertion (A): The acrosome of the sperm cell contains sperm lysin. Reason (R): Sperm lysin destroys the deformed sperm cells.

Question : Assertion (A) : Test cross is done between F_2 hybrid with F_1 recessive Reason (R) : It helps to identify the homozygosity of hybrids.

Question : Assertion (A): Syngamy refers to the fusion of two haploid gametes. Reason (R): Syngamy leads to zygote formation.

Question : Assertion (A) : Sterilization helps to overcome microbes. Reason (R ) : Explants are autoclaved.

Question : Assertion (A): Social forestry refers to management of forests and afforestation on barren lands. Reason (R): Afforestation involves the cutting of trees.

Question : Assertion (A): spleen is a primary lymphoid organ Reason (R ):Primary lymphoid organs trap antigen and destroy them.

Question : Assertion (A): Snake is a stenotherm. Reason (R): Organism can tolerate narrow temperature fluctuations.

Question : Assertion: A single mutation may produce a new species Reason: Mutations cause variation in chromosomes and genes and are,therefore, inheritable .

Question : Assertion (A): SLF promotes vigorous growth and provide resistance against diseases. Reason (R): SLF is made from kelp containing more then 70 minerals.

Question : Assertion (A) : Rhytidome is the structural defense by plants. Reason (R) : Rhytidome is composed of multiple layers of suberized periderm.

Question : Assertion (A) : Single cell protein from spirulina is utilized in food industries . Reason (R) : Single-cell proteins can cause allergy .

Question : Assertion (A) : Ruminate endosperm has irregular surface. Reason (R ): the best example of this is Areca Catechu.

Question : Assertion (A): Semi-conservative model was proposed by Hershey and Chase. Reason (R): The daughter DNA contains only new strands.

Question : Assertion (A) : Release factors recognize the initiation codons. Reason (R) : UAA is the initiation codon.

Question : Assertion (A): Pyramid of energy transfer is upright. Reason (R): During the energy transfer at successive trophic levels from producers there will be gradual decrease

Question : Assertion : A pulse wave function is given byy = (4 ) /(( 2 x+5 t ) ^ 2+2 ) ,is propagates in negative x-direction. Reason : The given wave function is of the form y = f(kx + omegat) , which represents a travelling wave in negative x-direction.

Question : Assertion (A): Pure line varieties show homozygosity.Reason (R): Pure line species are obtained through cross pollination.

Question : Assertion (A) : Pseudomonas putida is utilized in the production of Biological hydrogen. Reason (R) : During photosynthesis , it releases oxygen.

Question : Assertion (A) : Protoplasts are cells devoid of cell wall. Reason (R ) : Secondary metabolites are synthesized by protoplasmic fusion.

Question : Assertion (A) Predation is an interspecific interaction with a feeding strategy. Reason (R ) Predation and their prey maintain fairly stable population through time and rarely one population become abundant or scarce.

Question : Assertion (A) : Primary metabolites produced for the maintenance of life process of microbes . Reason (R) : Secondary matabolites are not produced by plants .

Question : Assertion (A): Prosopis juliflora is native to Afganisthan. Reason (R): Alien species refers to non-native species.

Question :Assertion .A.: Poultry keeping has become an important small scale industry. Reason .R.: Poultry keeping provides nutritive food in the form of eggs as well as adult animals.

Question : Assertion (A) : Polyploidy is common in plants. Reason (R) : Polyploidy possess more than 2 basic sets of chromosomes.

Question : Assertion :- A point object is placed at a distance of 26 cm from a convex mirror of focal length 26 cm. The image will form at infinity. Reason :- For above given system the equationgives position of image

Question : Assertion (A): Pollenkitt is contributed by the tapetum. Reason (R ) : It is chiefly made of xanthophylls and phycobilin.

Question : Assertion. A plant girdled upto best shows signs of degeneration of lower portion. Reason. Water transportation will cease

Question : Assertion (A) : Pleiotropic gene affects multiple traits Reason (R ) : ABO blood group is an example for Pleiotropism

Question : Assertion (A): Plains and valleys are rich in vegetation Reason (R): Slow drain of surface water and better water retention is noticed.

Question : Assertion .A.: Photosynthetic microbes produce H_2.Reason .R.: Microbes are able to convert solar energy in to fuel energy that can be stored.

Question : Assertion : Photochemical smog is produced by nitrogen oxides. Reason : Vehicular pollution is a major source of nitrogen oxides.