B) They supply the body’s cells with oxygen
I'll answer number 3 for you.
Which are decomposers within a spruce-fir forest ecosystem?
the answer is mushrooms.
Some mushrooms are known for growing over dead things..... I think.
I’m pretty sure it’s oxygen gas
Erosion<span> is the carrying away of those smaller pieces to another place. Deposition is the process by which</span>eroded<span> materials settle out into another place.</span>
Answer:
Today most people in developed countries have a scarcity of food sources.
