Answer:
In ecosystem every organism is dependent on each other .
just like that horse and grass or cow and grass are dependent to each other .
horse and cow eats grass so that there is balanced population of grass .
if there is no horse or cow(or other herbivore) then it effect the population of grass because there is no any one who eat them that's why grass population is go on increasing continuously ....
Explanation:
The frequency of volcanic activity, is used to clasify volcanic mountains either as active, dormant or extinct.
Answer:
Geologists can use index fossils to match rock layers in different areas.
Explanation:
The ocean ecosystem grows due to downwelling currents
A tremendous ecosystem grows along the coast due to downwelling longshore currents because this downwelling longshore currents regulates the bottom region of the ocean. These currents provide oxygen and distributing heat to deeper region of the ocean where majority of aquatic organisms are located. This current also bring nutrients to the surface in order to reduce toxicity of nutrients at the bottom as well as provides nutrients to the surface region.
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