There is no image so I’ll just explain the main 3:
Convergent: two boundaries are moving towards each other and usually create mountain ranges, or one is sinking below another another plate, cause volcanoes to appear
Divergent: two plates are moving away from each other, which created new land in between. Mostly is found on the sea floor
Transform: two plates are sliding past each other, usually appears with divergent boundaries
The correct answer is - A) Permafrost used to be permanent.
The permafrost used to be permanent until recently, so using certain techniques of building on it functioned properly. But with the climate changes that are becoming more and more evident, the permafrost is no longer permanent, but instead, it is either defrosting in some part of year and then forming again, or has been totally absent from some regions in the present.
That has caused changes in the rules governing building on permafrost. The reason for the changes is that the old techniques do not work properly anymore, and the permafrost changes are making change in the landscape, making big damages on the infrastructure in meantime.
The answer is: [A]: troposphere .
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Answer:
<h2>yes the temperature increases or decreases</h2>
The answer is B. Mountains.
