I believe its D. It becomes more difficult for the cell to get enough oxygen and nutrients.
Answer:
Every living organism starts with a cell which is the fundamental units of life, an organism could be unicellular or multicellular depending on the complexity. The aggregation of cells forms tissue, the tissue makes the organ while the organ makes the entire system which forms the entire living organism.
Explanation:
cell
tissue
organ
system
Sea levels can rise but cannot become lower The answer is false
With the choices given, the answer to the biology question presented above would be b. heavy metals such as mercury. Heavy metals contribute to soil pollution more than air pollution. The other choices are sources of air pollution. Thus, letter b is the answer.
