What is present on the surface of the leaves which helps the plant prevent loss of water but is absent in roots?

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Solution

Cuticle It is waxy coating covering the entire plant body surface. It is absent in roots, it prevents the loss of water through the surface of the plant body.

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Q. Cacti can survive in desert because:

a. It has a flat green stem to store water and prepare food by photosynthesis.
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c. The roots are distributed on the surface to absorb water.
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a. It has a flat green stem to store water and prepare food by photosynthesis.

b. The stem is covered with a thick layer of cuticle, which helps to preserve water.

c. Its roots are distributed on the surface to absorb water.

d. Leaves are modified into spines to prevent loss of water

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