Question

Ethanol is considered a renewable resource and a self-maintaining source of energy. It is used as a biofuel and produced through chemical treatments of crops such as corn and sugar cane. Which of the following processes enables ethanol to be a self-maintaining renewable resource?
A.
the process of photosynthesis
B.
the process of digestion
C.
the process of engineering
D.
the process of fossilization

Answer 1

The correct answer is A. the process of photosynthesis.

Photosynthesis allows plants, such as corn and sugar cane, to convert sunlight into energy, which enables them to grow and produce biomass that can be harvested for ethanol production. This means that as long as there are plants growing and being harvested, ethanol can be continually produced, making it a renewable resource.