When organisms give off waste or decompose back in to the are both released back into the soil.

phosphorus
b. nitrogen
c. nitrogen / phosphorus

cuz he's blad

explanation:

a physical change is being made.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.