Answer:
Sampling
Explanation:
Sampling is a statistical procedure in which a selected number of observations is used to represent the whole observation. When we take an area and we use the population to estimate that of other areas or the whole population, we are simply sampling. Sampling is very important to some specific forms of observations. Sampling can be done randomly or in a systematic way. The goal of sampling is using the part to represent the whole.
I'm pretty sure that it's A, a little higher because most of the lava runs down the sides of the volcano.
Answer B. Continental shelf:
Explanation:
Just looked it on Nasa website says it forms on oceanic and continental plates
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