Which is a larger molecule, O3 or SeO2?

Larger molecule = larger molecular weight

Add up each atoms mass in the compound and the molecule with the higher molecular weight is larger

In this case SeO2 is much larger 114amu > 48amu

Explanation:

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

they are all solids.