Answer:
a nuclear reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy.
Explanation:
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Geologic maps are most recognized by their colors/symbols which represent different rock units/rock ages. If you observe a geological map, you would notice different areas have different colors. These colors usually denote similar characteristics in rocks surrounding an area (age, type). Symbols are denoted by a capital letter followed by lower case letters. The capital letter represents the age of the unit.
The Grand Canyon is constantly being slowly eroded by the rive that flows within it, and scientist have found evidence that suggest it was cut within the last 4 million years.
