1. Explain the two processes that keep atmospheric oxygen and carbon dioxide at stable levels?

2. What do you think are two causes of the increase in carbon dioxide in the atmosphere?

Answers

Answer 1

Cellular Respiration and Photosynthesis. Photosynthesis is the process of when plants use sunlight to make foods from carbon dioxide and water, to later on make oxygen. Cellular respiration is the process through which cells convert sugars into energy.


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True or False?

Density of ocean water is not affected by salinity (salt content).

Answers

Answer:

false

Explanation:

Answer: yes it its true.

Explanation:  I just see that in a exam

Which two minerals can be scratched by a knife but not copper coin?

Answers

calcite and fluorite <33
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