Question

The raw material most used by the plants is?

• A. $O_2$
• B. $C{O}_2$
• C. $N_2$
• D. K

Answer 1

Answer: (B)

$C{O}_2$

The mostly used raw material by plants is $C{O}_2$ as it is required for the photosynthesis to produce the starch. It is directly incorporated in the food that the plants make for themselves. Plants with the help of $C{O}_2$ and water in the presence of sunlight and chlorophyll make the food.

Hence, B is the right answer.