Natural gas is a fossil fuel used as a source of energy for heating, cooking, and electricity<span> generation. It is also used as fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.</span>
The answer is C. thousands of galaxies
because<span> Hubble found 10,000 of galaxies just by observing one small little area in space.
So, it has to be thousands.</span>
Answer:
B or C i think
Explanation:
because Eons are broken into eras and then into periods. Its not A tho
A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.