Question

What does the photograph of the anaerobic digester silos and its caption help the reader understand?

a
Mircobes are used to make methane.
b
Methane is held in containers so it won't escape.
c
Farms benefit from the extra food from stores.
d
Methane is converted into electric power.

Answer 1

B, Methane is held in containers so it won't escape.

Answer 2

A because mircobes are used to make Meghane