Oc would be the answer to this question
Because the oxygen produced in photosynthesis is used in respiration, and the carbon dioxide produced in respiration is used in photosynthesis.
Answer:
Mendeleev
Explanation:
You could have just looked it up.
If a deep ocean trench is located adjacent to a continent, active volcanoes would likely be found landward from the trench.
The answer is a. basalt. Gabbro rocks are more related to basalt in terms of chemical characteristics. They are both igneous rocks but basalt is an extrusive rock that cools quickly while gabbro is intrusive and cools slowly. So, basalt rocks are fine-grained while gabbro are coars-grained.