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Plants such as cyanobacteria and blue-green algae exhibits AUTOTROPHIC nutrition

Cyanobacteria performs the oxygenic PHOTOSYNTHESIS and they are the CHIEF producers of the biosphere

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Answer:

COMPOST is eco friendly.it does not DAMAGE our environment.

Explanation:

CHEMICAL FERTILIZERS reduce soil FERTILITY

ANSWER:

EXPLANATION:Carbon dioxide reacts with calcium hydroxide solution to produce a WHITE PRECIPITATE of calcium carbonate. ... If carbon dioxide is bubbled through LIMEWATER, the limewater turns milky or cloudy white.

ANSWER:

Answer:

iam could not UNDERSTAND this question sorry

Explanation:

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Answer:

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(a) The HEIGHT of the blood column is more for the feet as compared to that for the brain.Consequently, the blood pressure in humans is greater at the feet than at the brain.(b) The VARIATION of air-density with height is not linear. So, pressure ALSO does not reduce linearly with height. The air pressure at a height h is given by P = P0e–αh where P0 represents the pressure of air at sea-level and α is a constant.(c) Due to applied FORCE on liquid, the pressure is transmitted equally in all directions inside the liquid. That is why there is no fixed direction for the pressure due to liquid. Hence hydrostatic pressure is a scalar quantity.

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Answer:

SRI Lanka has better performance in TERMS of human development than India.

So Sri Lanka

is the correct answer....

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Answer:

THRESHING is the correct answer.......

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Answer:

VACCINES HELPS us to prevent disease by INCREASING the immune SYSTEM .

Answer:

ice MELTS at MELTING point of 0.01 C

ice BOILS at boiling point of 100 C

Explanation:

Answer:

both posses mass, shape and OCCUPY SPACE. 2. both are made up of basic structural units- cells in LIVING and molecules in the NON- living things

Explanation:

Answer:

madhu may ROG diabetes ko kahete hai. yah zayada matra mein mitha khane par hota hai. iski rok tham KA upay yah hai ki apane mithe par cantrol kare fruits or VEGETABLES zayada KHAYE Or time par APNA check up karate rahe.

Explanation:

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ANSWER:

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Explanation:

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ANSWER:

APICULTURE is the REARING of HONEYBEES for honey​ .

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Answer:

1. TRUE

2. true

3. False

4. True

TEARING of a paper is a physical change because when the paper is TORN only the appearance of the paper is changed and no new substance is formed. ... Burning of paper is a chemical change when paper is BURNT the chemical composition of the paper is changed at the MOLECULAR level.

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Answer:

three

Simple permanent TISSUES are again classified into three main types. They are parenchyma, collenchyma, and SCLERENCHYMA. Parenchyma – The CELLS of this tissue are living, with THIN cell WALLS.

ANSWER:

DOUBLE condensed milk . i am using milma milk and i am in  kerala

it is pure and HEALTHY and i am suggest double condensed milk

Categorization is the most basic COGNITIVE process. ... Categorizing in LANGUAGE is IMPORTANT because: It gives US a way to describe an item to OTHERS. It provides connections between ideas for similarities/differences

ANSWER:

they HELP each other by symbiosis

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Answer:

EXPLANATION:

BACTERIA such as cyanobacteria is the microorganism that EXHIBITS AUTOTROPHIC NUTRITION ​

ANSWER:

PROTEIN

Explanation:

Protein is in every living cell in the BODY. Your body needs protein from the foods you EAT to build and MAINTAIN bones, muscles, and skin. You get proteins in your diet from meat, dairy products, nuts, and certain grains and beans.

ANSWER:

O BLOOD GROUP...as to is a UNIVERSAL dominant

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ANSWER:

the above EQUATION is ALREADY BALANCED.

EXPLANATION:

no WATER is MEASURED in LITRES

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Copper is the brown coloured ELEMENT X which on heating in air becomes black coloured COMPOUND copper oxide.

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Answer:

6.ans Pesticides

7.ans Water logging

Answer:

Explanation:

• Nitrogen EXISTS as two nitrogen atoms joined by a very strong triple covalent bond (N ≡ N). The process of conversion of nitrogen (N₂) to ammonia is termed as nitrogen-fixation.
• In nature, lightning and ultraviolet radiation provide enough energy to convert nitrogen to nitrogen oxides (NO, NO₂, N₂O).
• Industrial combustions, forest fires, automobile exhausts and power-generating stations are also sources of atmospheric nitrogen oxides.
• Decomposition of organic nitrogen of dead plants and ANIMALS into ammonia is called ammonification.
• Some of this ammonia volatilises and re-enters the atmosphere but most of it is converted into nitrate by soil bacteria.
• Ammonia is first oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrococcus.
• The nitrite is further oxidised to nitrate with the help of the bacterium Nitrobacter. These steps are called nitrification. These nitrifying bacteria are chemoautotrophs.
• The nitrate thus formed is absorbed by plants and is transported to the leaves.
• In leaves, it is reduced to form ammonia that finally forms the amine group of amino acids.
• Nitrate present in the soil is also reduced to nitrogen by the process of denitrification. Denitrification is carried by bacteria Pseudomonas and Thiobacillus.

2NH₃ + 3O₂ ⇒ 2NO₂⁻ + 2H⁺ + 2H₂O

2NO₂⁻ + O₂  ⇒2NO₃⁻

AMMONIFICATION

    N ≡ N ⇒ NH₃ by nitrogenase

N₂ + 8e⁻ + 8H⁺ +16ATP ⇒ 2NH₃ + H₂ + 16ADP + 16Pi

• Nodule formation involves a sequence of MULTIPLE interactions between Rhizobium and roots of the host plant.
• The nodule contains all the necessary biochemical components, such as the enzyme nitrogenase and leghaemoglobin.
• The enzyme nitrogenase is a Mo-Fe protein and catalyses the conversion of atmospheric nitrogen to ammonia.
• The enzyme nitrogenase is highly sensitive to the molecular oxygen; it requires anaerobic conditions.
• The nodules have adaptations that ensure that the enzyme is protected from oxygen.
• To protect these enzymes, the nodule contains an oxygen scavenger called leg-haemoglobin. It is interesting to note that these microbes live as aerobes under free-living conditions (where nitrogenase is not operational), but during nitrogen-fixing events, they become anaerobic (thus protecting the nitrogenase enzyme).
• You must have NOTICED in the above reaction that the ammonia synthesis by nitrogenease requires a very HIGH input of energy (8 ATP for each NH3­ produced). The energy required, thus, is obtained from the respiration of the host cells.

ANSWER:

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Explanation:

Yarns are made up of thin strands called fibres. The process of MAKING yam from fibres is called spinning. In this process, a mass of cotton wool are drawn out and twisted. This brings the fibres TOGETHER to form yarn.

ANSWER:

MAY be TV channel or serials NEWSPAPER spending time in TEMPLES

Answer:

Keep the water level the same in the jar, so the sweet potato bottom stays WET. A few days after you see the first leaves, you will see VINES growing. After two to three weeks, you will have several LONG vines with green leaves. ... Your sweet potato will CONTINUE growing into a green, leafy houseplant.

Explanation:

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Answer:

answer is

Explanation:

1.Woollen clothes KEEP US warm during winter because WOOL is a poor conductor of heat and it has air TRAPPED in between the fibres.

2.Shearing: The process of removal of the woolen coat or fleece from an ANIMAL is called shearing.

Scouring: The process of removing dirt, dust and grease from the sheared hair is called scouring.

3.Breeding of silkworms.

FRICTION is the force that OPPOSES motion between any surfaces that are in contact. There are four types of friction: STATIC, SLIDING, ROLLING, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Fluid friction occurs in liquids and gases

Answer:

a) to 10 b) BELONGS to 7 and c) belongs to 5

Explanation:

because 5 atomic number comes in the group 13 that's boron and 7 atomic number belongs to 15 that's NITROGEN and 10 belongs to 18 that is NICKEL.

ANSWER:

Explanation:

5,12 AND12, 5 is in a bracket MEANS use the formula BODMAS

Answer:

1 WOOL because it is synthetic

Explanation:

2 cotton

3 because they INJURED after SHEARING their HAIR

Answer:v=s/t

V=120km/h

=120×5/8

=75m/s

t=30s

S=vt

=75×30

=2250m

S=2.25km

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Viruses cause diseases like common cold, flu. But some severe diseases that viruses can cause are of COURSE the CORONA virus DISEASE and HIV, AIDS, smallpox and ebola.

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ANSWER:

two examples of enzymes (FOOD) - CURD and alchohal products

Autotrophic nutrition

Autotrophic Nutrition. “Autotrophic nutrition is a process where the organism prepares its food from the simple inorganic materials like water, mineral salts and CARBON dioxide in the presence of sunlight.”

Omnivores

An omnivore is an animal that has the ability to eat and survive on both plant and animal matter. Obtaining energy and nutrients from plant and animal matter, omnivores digest carbohydrates, protein, fat, and fiber, and metabolize the nutrients and energy of the SOURCES absorbed.

PARASITIC nutrition

Parasitic nutrition is a mode of heterotrophic nutrition where an organism lives on the body surface or INSIDE the body of another type of organism . The parasite obtains nutrition directly from the body of the host. The parasites derive their nourishment from their host.

Photosynthesis

Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into OXYGEN and energy-rich organic compounds.

Answer:

colloid appears to be HOMOGENEOUS but ACTUALLY it is heterogeneous.

2. The SIZE of colloidal particles is bigger than the those of true solution but smaller than those in suspension.

3. It is between 1nm to 100nm in diameter.

4. The particles of collodial cannot be seen even with microscope.

5.The particles of colloiudal can pass through a filter paper, so colloidal cannot be separted by filtration.

6. A colloid scatters a BEAM of light passing through it

hence by all these reasons , colloidal solution is cateograised as HETEROGENEOUS.

Answer:

We know that,

Radius of curvature=2×focal length

R=2f

R=2×(-12)cm

R=-24cm

Explanation:

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ANSWER:

eating of food and it's utilisation by the body is known as NUTRITION what is the process when plants PREPARE their own food are the KITCHEN off

Answer:1.carnivores

2.saprophytes

3.root hair

4. CUSCUTA

5. Rhizobium

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X is a virus

because viruses are both living and non living organisms

they behave like living things when they are inside the CELL

they behave like non living things when they are OUTSIDE the cell

so viruses is your ANSWER

ANSWER:

it will false

Explanation:

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A protein complex or multiprotein complex — A group of two or more ASSOCIATED polypeptide chains. Proteins in a protein complex are linked by non - covalent protein - protein interactions. The process of complex FORMATION comprises of steps namely : ... During this phase the proteins REMAIN largely Solvated.

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Mensuration:

the PART of GEOMETRY with lengths,AREA,volumes of different KIND of 3d and 2d SHAPS