Which of the following statements is true?

Question

Solar energy can only be used on Earth. It can't be used in space.
Wind is the most commonly used renewable energy source in the United States.
Hydropower uses the kinetic energy of water to generate electricity.
Wind energy does not use a turbine or a generator to produce electricity.

Answer 1

The true statement among the options provided is:

Hydropower uses the kinetic energy of water to generate electricity.

Here’s the evaluation of the other statements:

1. Solar energy can only be used on Earth. It can't be used in space. - This statement is false. Solar energy can be harnessed in space, and solar panels are used on satellites and other spacecraft to generate electricity.

2. Wind is the most commonly used renewable energy source in the United States. - This statement is false. While wind energy is a significant source of renewable energy in the U.S., as of now, hydropower still accounts for a larger share of renewable energy generation.

3. Wind energy does not use a turbine or a generator to produce electricity. - This statement is false. Wind energy is harnessed using wind turbines, which convert the kinetic energy of the wind into electricity through a generator.

So, the only true statement is about hydropower.