the ground to bacteria. the Sun to plants. plants to animals. animals to air.
I gave my students this multiple choice question: When a volcano erupts, dust and ash are blown into the atmosphere. The eruption directly reduces the transfer of energy from

Only one answer is correct among these 4 choices:
- the ground to bacteria.
- the Sun to plants.
- plants to animals.
- animals to air.

Could you tell me which one is correct?

the Sun to plants.