Isotopes
The answer has to be 20 characters long so this is irrelevant.
Answer:
Trophic Cascade
Explanation:
Trophic cascade is when the ecosystem experiences a level of a certain species being reduced or removed.
The answer is A.) carbon dioxide, water, oxygen, nitrogen, and hydrogen
Hope this helps
Feel free to ask anymore questions here at brainly.com
<span>B. democratic government
Western Germany was heavily backed by UK and United States compared to the communist Eastern Germany.
</span>
