Sunlight as the primary energy source — task. Biology CBSE Live product, Class 7 (2025-26).

Pick all the correct statements from below.

1. Why do plants kept in the dark for several days fail to produce starch?

Because starch gets converted to proteins in the dark.
Because photosynthesis does not occur without sunlight.
Because the plant uses up stored starch for survival.
Because chlorophyll stops functioning in the dark.
Because carbon dioxide cannot enter the leaves.

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