The electricity that we use is a secondary energy source because it is produced by converting primary sources of energy such as coal, natural gas, nuclear energy, solar energy, and wind energy, into electrical power.
The earth's surface features are constantly changing in a process known as weathering and erosion. Weathering would happen when rocks would break physically like frost shattering while erosion happens when sediments and rocks are moved from one place to another by agents like water, gravity, wind and ice. These two occurrences are the cause of the constant change of the Earth's surface.<span />
<span>After a week in the mountains, Jill should show an increase in red blood cell production along with a higher base metabolism.</span>
Answer:
orange is a biodegradable so it breaks down and is put in the atmosphere and an animal could breath it in.
Explanation: