The type of energy that is most environmentally friendly is

A.

solar

B.

thermal

C.

hydroelectric

D.

nuclear

Correct answer is A

Solar energy is considered the most environmentally friendly type of energy. This is because it is a renewable source of energy that does not emit any greenhouse gases during production. Solar panels can be installed on rooftops, which does not require any additional space. The energy production is also silent which is beneficial for urban and populated areas.