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951.	Question : Match the following properly:
Answer» SOLUTION :(1-b),(2-a) ,(3-d), (4-c)

952.	Question : Define sanyam and svasthya. How are two related ?
Answer» Solution :(1) Sanyam means self-control. Control over one.s own self by having GOOD HABITS and having control over our own senses is called sanyam. (2) Svasthya means welfare. Welfare is possible only when there is PHYSICAL and mental HEALTH. (3) The sanyam or self-control makes a person healthy. If he or she has sanyam, he or she will never get hooked on to the addictions and bad habits. Many bad habits make a person susceptible to a variety of diseases. The sanyam HENCE keeps the svasthya in a proper way.

953.	Question : Match the following properly
Answer» ANSWER :1-b, 2-d, 3-a, 4-c

954.	Question : Define plasma.
Answer» ANSWER :PLASMA is the traw yellow COLOURED fluid that CONSTITUTES 55% of BLOOD. Blood cells are found in plasma.

955.	Question : Match the following properly:
Answer» SOLUTION :(1-b), (2-c), (3-d),(4-a)

956.	Question : Define phylogeny.
Answer» Solution :Phylogeny is ANCESTRY of an ORGANISMS i.e., EVOLUTIONARY history of an ORGANISM.

957.	Question : Define Mushroom culture. Explain the mushroom cultivation methods.
Answer» SOLUTION :MUSHROOM is a fungi belonging to basidiomycetes.It is rich in proteins, fibres, vitamins and minerals.Mushroom culture is the process of producing FOOD, medicine, and other products by the cultivation of mushrooms. Mushroom can be cultivated either on paddy straw or on wood log. Major stages of mushrorm cultivation are, Composting Compost is prepared by mixing paddy straw with number of organic materials like cow dung and inorganic fertilizers.It is kept at about `50^(@)`Cfor one week. Spawning Spawn is the mushroom seed. It is prepared by growing fungal mycelieum in grains uunder sterile conditions.Spawn is sown on compost. Casing Compost is covered with a thin layer of soil.It gives support to the growing mushroom, provides humidity and helps regulate the temperature. PINNING Mycelium starts to form little bud, which will develop into mushroom.Those little white buds are called pins. Harvesting Mushroom grow better in `15^(@)C- 23^(@)C`. They grow 3 cm in a week which is the normal size for harvesting.In the third week the first flush mushroom can be harvested.

958.	Question : Match the following properly:
Answer» SOLUTION : (1-b), (2-c), (3-d), (4-a).

959.	Question : Match the following properly:
Answer» SOLUTION :(1-d), (2-b). (3-a), (4-c).

960.	Question : Define lymphatic system.
Answer» ANSWER :Lymphatic SYSTEM CONSISTS of large and small lymph ducts, lymph nodes, lymph and SPLEEN.

961.	Question : Match the following properly:
Answer» SOLUTION : (1-c), (2-a), (3-b). (4-d).

962.	Question : Define (i) Vermicompost , (ii) Green Manure , (iii) Biofertilizers.
Answer» Solution :(i) VERMICOMPOST. It is a MANURE rich pulverised ORGANIC matter and worm castings. Vermicompost is formed by the ACTIVITY of earth worms on organic remains. (ii) Green Manure. See TEXT.(iii) Biofertilizers. See text.

963.	Question : Match the following properly:
Answer» SOLUTION : (1-b), (2-c), (3-d), (4- a).

964.	Question : Match the following column I and II
Answer» SOLUTION :The correctmatching is

965.	Question : Define heart beat.
Answer» ANSWER :ONE systole and the subsequent DIASTOLE together constitute a heart beat. It takes about 0.8 SECONDS.

966.	Question : Match the following
Answer» ANSWER :1(c),2(d),3(B),4(a)

967.	Question : Define enamel.
Answer» Answer :Enamel is the hardest PART in our body. It is white in colour. It is a dead tissue in the out LAYER of our TEETH.

968.	Question : Match the Following:
Answer» Solution :1. - d. LANDSCAPE irrigation2. -C. Non-LIVING factors 3.- b. Management of water resources4.- a. Living factors

969.	Question : Define Double circulation.
Answer» Answer :The same AMOUNT of blood PASSES through the heart twice. This type of CIRCULATION is called DOUBLE circulation.

970.	Question : Match the following
Answer» ANSWER :A::B::C::D

971.	Question : Match the Following:
Answer» Solution :1. (b) AMMONIFICATION 2. (d) DENITRIFICATION 3. (a) Nitrogen fixation 4. (c) NITRIFICATION

972.	Question : Define diastole.
Answer» Answer :After SYSTOLE along with ATRIA, ventricles ALSO relax. This stage of relaxation is TERMED as diastol.

973.	Question : Match the following
Answer» ANSWER :A::B::C::D

974.	Question : Match the following.{:(1.,"Potassium",(a),"Dermatitis"),(2.,"Vitamin B6",(b),"Pellagra"),(3.,"Omega - 3",(c ),"a Vital solvent"),(4.,"Vitamin B3",(d),"Muscular fatigue"),(5.,"Water",(e ),"Essential fatty acid"):}
Answer» SOLUTION :1-d, 2-a, 3-e, 4-b, 5-c

975.	Question : Define computer
Answer» Solution :COMPUTER is an electronic device, which manipulates and STORES data and information through commands or PROGRAM codes.

976.	Question : Define cohension in water?
Answer» Answer :Cohension in wateris a PROPERTY of water that makes its molecules attracted to each other. A water molecule is made of ONE oxygen atom BONDED to TWO hydrogen atoms.

977.	Question : Match the column I with the column II.
Answer» SOLUTION :the CORRECT MATCHING is

978.	Question : Define 'Cindrella of the plant kingdom'.
Answer» Solution :Water hyacinth (EICHHORNIA crassipes) is a very CHARMING plant. It is CALLED as .CINDRELLA of the plant KINGDOM.. It covers entire surface of the water resources.

979.	Question :Match the column I with the column II
Answer» Solution :The correct MATCHING is Parenchyma are thin walled CELLS FOUND in soft parts of the PLANT. In hydrophytes such aswater hyacinth, Hydrilla etc., large air cavities are present in parenchyma to give buoyancy to plant. Such type of parenchyma is called aerenchyma. (Also, refer to Q. 1 and 2)

980.	Question :Match the column I with the column II
Answer» Solution :The correct matching is BLOOD is a fluid connective tissue as it transports nutrients, hormones and vitamins to thetissue and excretory products from tissues to the liver and kidney. Areolar tissue is the simplest and most widely distributed connective tissue. It acts as a supporting and packing tissue and joins muscles to skin and FILLS spaces inside organs. Skeletal muscles are also called striated muscles due to the presence of alternate dark and light BANDS called striations. Adipose tissue is fat reservoir and is present just below the skin and is called subcutaneous layer support and fexibilty to the body parts and smoothens the SURFACE at joints. Stratified squamous epithelium is characterised by the presence of keratin. It LINES the skin and covers the external surface Surface of joints is covered by cartilage. It provides support and fexibibilty to the body parts and smoothens the surface at joints. Stratifed squamous epithilium is characterised by the presence of keratine. It lines the skin and covers the external surface.

981.	Question : Define birds, Give three eamples each of flightless bireds and insectivorous birds
Answer» Answer :Birds are feathered bipeds, air breathers and TRULY FLYING animasl . Flightless birds- OSTRICH, KIWI, Penguin Insectivarous birds - Hoopoe, Myna, Greem bee EATER.

982.	Question : Match items of column (A) with items of colomn (B) {:(,(A),,(B)),((a),"Pore bearing animals",(A),"Arthropoda"),((b),"Diploblastic",(B),"Coelenterata"),((c),"Metameric segmentation",(C),"Porifera"),((d),"Jointed legs",(D),"Echinodermata"),((e),"Soft bodied animals",(E),"Mollusca"),((f),"Spiny skinned animals",(F),"Annelida"):}
Answer» ANSWER :(a)-(C); (B)-(B) ; (c)-(F) ; (d)-(A); (E)-(E); (f)-(D)

983.	Question : Define atherosclerosis
Answer» Answer :Consumption of EXCESS fatty food leads to the accumulation of FAT in the ARTERIAL walls. This condition is CALLED atherosclerosis.

984.	Question : Match column A with column B.{:(1.,"Calcium",-,(a),"Muscular fatigue"),(2.,"Sodium",-,(b),"Anaemia"),(3.,"Potassium",-,(c ),"Osteoporosis"),(4.,"Iron",-,(d),"Goitre"),(5.,"Iodine",-,(e ),"Muscular cramps"):}
Answer» SOLUTION :1-c, 2-e, 3-a, 4-b, 5-d

985.	Question : Define amplitude,time period and frequency of sound wave.
Answer» Solution :AMPLITUDE : The magnitude of the maximum disturbancein the medium on EITHER side of the mean value is called amplitude of THEWAVE. Its unit is meter. Time period : The time taken by two consecutivecompression. or RAREFRACTION to cross a fixed point is called the time period of the WAVE. Frequency : The number of oscillation, occurring per unit time is called the frequency of sound wave.

986.	Question : Match column A with column B.
Answer» Solution :1. (d) positive geotropism 2. (a) Positive phototropism 3. (B) Negativegeotropism 4.(C) Negativephototropism

987.	Question : Define adhesion?
Answer» Answer :The force of attraction between UNLIKE MOLECULES or the binding of a CELL to ANOTHER cell.

988.	Question : Marine fish.
Answer» SOLUTION :Pomphret, MACKEREL, Tuna, SARDINES and Bombay duck.

989.	Question : Mariculture
Answer» Solution :REARING of MARINE fin fish and SHELL fish in the articical ponds till the marketable SIZE is calld MARICULTURE.

990.	Question : Deficiency of Calcium in diet leads to poor skeletal growth
Answer» Solution :DEFICIEN of Clcium in diet leads to poor SKELETAL growth because of bone DEFORMITIES and Osteoporosis in ADULTS .

991.	Question : Many measures are used to bring more and more agricultural land under irrigation.
Answer» Solution :In INDIA, most of the farming depends upon the rainfall. Therefore, agriculture in India is said to be rain fed. But if the there is poor monsoon, then there is crop failure. The success of crop is dependent on sufficient monsoons. To ensure that crops get water at right time, Irrigation systems are essential. They can INCREASE the expected yeilds of any crop. Therefore, many MEASURES are USED to bring more and more agricultural land under irrigation.

992.	Question : Manure and Fertilizers.
Answer» SOLUTION :

993.	Question : Deficiency diseases can be prevented by taking ……………………. diet.
Answer» SOLUTION :BALANCED

994.	Question : Malaria is caused by mosquito bite.
Answer» ANSWER :TRUE

995.	Question : Making of antibacterial medicines is easier than making antiviral medicines.
Answer» ANSWER :TRUE

996.	Question : Deaw a plant cell and label the parts which (a) Determine function and development of the cell. (b) Provides resistane to microbes and to withstnd hypotonic external medium without injury. (c ) Packages materials coming from theendoplasmic reticulum. (d) Is a fluid contained inside the nucleus. (e) Is site for many biochemical reaction necessary to sustain life.
Answer» Solution :DRAW figure of a PLANT cell as in Figure. 2.15, nd lable (a) Nucleus, (b) Cell wall, (c ) GOLGI BODIES, (d) Nucleoplasm, (e ) Cytoplasm.

997.	Question : Making anti-viral medicines is harder than making antibacterial medicines.
Answer» Solution :Viruses have few biochemical mechanisms of their own by which they enter human cells and USE cell.s MACHINERY for their life processes. Bacteria do not have such life cycle. Their biochemical mechanisms can be modificd by specific antibiotics. In CASE of viruses, there are RELATIVELY few virus-specific targets to aim at. Therefore, making antiviral medicines is HARDER than making antibacterial medicines.

998.	Question : Data processing involves.________ steps
Answer» seven four six eight Answer :C

999.	Question : Make a list of extinct animals of the Animal Kingdom and classify them on the basis of various systems of classification.
Answer» ANSWER :N/a

1000.	Question : Dark reaction is also known as………………
Answer» ANSWER :CALVIN CYCLE

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