Solar panels are used to convert the Sun's energy into electricity. The Sun can also be used to heat water passing through special solar collectors.
A.
renewable
B.
nonrenewable
2.
Air moves into a low pressure area making wind. This wind can be used to move wind turbines and make electricity.
A.
renewable
B.
nonrenewable
3.
Dams are built across lakes or rivers in valleys to trap water. The water flows through tunnels and turns turbines to make electricity.
A.
renewable
B.
nonrenewable
4.
Groundwater is found underground. People use it to drink it and water crops. Once it is extracted from the ground, it cannot be put back. It is not easily replaced.
A.
renewable
B.
nonrenewable
5.
Soil is used to grow crops. Degradation of soil occurs when the land is not allowed to restore its nutrients naturally. Eventually, the soil loses its nutrients and is not able to grow crops anymore.
