Answer:
Bob is incorrect as plants do not get all the materials for growth from the soil.
Explanation:
1. Plants absorb light energy( in the form of energy packets or photons) that comes from the sun.
Light is required for the process of photosynthesis ( light reaction).
2. Plants need carbon dioxide for photosynthesis which they obtain from the air.
Gaseous exchange takes place via the stomata present on the lower surface of leaves.
