3. An ocean surrounded by many trenches may __?__. * increase in size decrease in size remain the same triple in size

decrease in size

Explanation:

An ocean surrounded by many trenches may "decrease in size."

This is evident in the formation and process of subduction and sea-floor spreading, which has a great impact on how the oceans form in terms of size and shape.

According to research, it is believed that the sizes of Earths oceans are defined by the speed at which new crust is being developed, right from the mid-ocean ridges, and the speed at which old crust is being swept off at deep-ocean trenches

To answer the question, the first thing we must do is rewrite the following expression:

4 times as many as 25

We rewrite this expression in algebraic form.

We have then:

4 times as many as 25 = 4 * 25

Making the corresponding calculation, we will obtain:

100 is 4 times as many as 25