Question

10. Which of the following is the third main source of energy?
a) Hydropower
b) Coal
c) Natural gas
11. Which energy is associated with the photovoltaic cells?
d) Solar​

Answer 1

Answer:

10) Coal

11) A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.

Explanation:

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Answer 2

Answer:

10) Hydropower

11) solar cells

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