Why is freshwater a renewable resource? Most water on Earth is trapped in lakes and rivers, which are large reservoirs of freshwater.
Wind causes ocean water to hit shores as waves. Some of these waves become groundwater, which is freshwater.
Over time, salt in Earth’s oceans settles to the bottom of the ocean floor. Water at the top of oceans becomes freshwater.
Water evaporates due to the action of the Sun and falls back to Earth as rain. Rain is freshwater.

Why is hydropower a renewable resource?

Hydropower relies on Earth’s water cycle, which is powered by the Sun.
Hydropower relies on the Sun heating Earth unevenly.
Earth has an abundant amount of water, all of which can be used for energy.
Earth has a small amount of freshwater, most of which can be used for energy.

Why is soil unevenly distributed on Earth?

Soil forms only in places where rock particles are deposited.
Soil forms only in places where larger rocks are broken into smaller rocks.
Soil forms only within the Earth under heavy pressure.
Soil forms in the air and is then deposited mainly in places that get a lot of rain.