Answer:
so many processes requires oxygen to operate .
An example is the process of plants making their own food .
Answer:
currents
Explanation:
when trach is released in the ocean, currents move it around the ocean and over time it starts to collect in different areas.
The Waxing gibbous moons were the moon does the lot surface of the moon appear to be increasing
It is A. The Sum of all the actual feeding relationships in an ecosystem.
