Answer:
It exposes rocks to increased rates of erosion and weathering. It limits the exposure of rocks to acid precipitation.
Explanation:
Calcium provides strength as a element, though it is present as calcium chloride on the exoskeletons.
Answer:
The species is extinct.
Explanation:
Endangered signifies that species will soon go extinct.
Answer:
Decreasing.
Explanation:
Last year= 10 goldfish
This year= 5 goldfish
The amount in goldfish is decreasing.
