<span>Both are densely populated</span>
It looks as if he is replying back to them about a situation that got him confined during "constructive": work as he talk about himself and his work while asking or waiting for an answer back .
Answer:
Rocks expand and contract when they are heated and cooled which cause them to break.
Explanation:
I am fairly sure it is D. I remember learning the chant "The US wanted to demilitarize and democratize Japan".
