The cycle of oxygen through the atmosphere is closely tied to? ?

1. A - animal release carbon dioxide into the air, and animals breathe it in.

2. A - ammonia would build up in the soil.

3. D - water cycle

4. B - over - fertilizing soil.

5. A - adding excessive carbon dioxide to the atmosphere through burning fossils fuels.

Explanation:

I am in 9th grade connections academy. So, ik the answers plus, i just did it and I got a 60% but just giving you the answer.

QuickCheck - Biology - Unit 4 Lesson 5

because the light is a great source of energy for the plants to survive. (i hope this )