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Factors Required for Making Food in Plants

Carbon dioxid...

Question

Carbon dioxide is needed by plants to make their ______.

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Solution

Plants make their own food in the presence of water, sunlight, chlorophyll and carbon dioxide.
This process of making food is known as photosynthesis.
During photosynthesis, plants make food in the form of starch and give out oxygen in the air.
Therefore, Carbon dioxide is needed by plants to make their food.

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Q. Carbon dioxide in air is used by plants to
(a) breathe.
(b) make food.
(c) remove waste.
(d) trap energy of sun for photosynthesis.

Q. Fill in the blanks:
1. The percentage of carbon dioxide in the air is .............................. .
2. Plants need .............................. to make their food.
3. .............................. is the blanket of air around us.
4. Nitrogen is the largest component of .............................. .
5. Living things respire to get .............................. from food.

84 Green plants need carbon dioxide gas to make food.

Q. the green plants make their own food by the process A by combinig water[and nutrients like nitrogen],carbon dixiode gas and energy.
[a]what is the name of process A?
[b]from where do the green plants get carbon dioxide for making food?
[c]from where do green plants get energy for making food?
[d]what name is given to green plants which make their own food?

Q. Assertion (A): Plants help to purify air by taking in carbon dioxide.

Reason (R): Carbon dioxide is used in photosynthesis during daytime

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Factors Required for Making Food in Plants

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