The answer is d that glaciers erode and pluck from the entirety of the valley floor (including both the floor and walls of the valley) and the result is the U-shape of the ensuing valley as opposed to the typical V shape of valleys resulting from large streams or rivers.
Answer: Sillimanite, Andalusite, Kyanite and Staurolite
Explanation:
This are the four main minerals that forms in metamorphic rocks and indicates metamorphism.
Sillimanite forms at a high temperature condition, andalusite forms at a moderate temperature and pressure condition, and lastly, kyanite forms at a high pressure condition. Staurolite also forms at high temperature-pressure condition.
This four minerals forms when a rock undergoes metamorphism and are usually found in metamorphic rocks such as schist, gneiss and granulite.
I believe the answer is C, any kind of rock (metamorphic and sediment) can become igneous if melted and cooled.
Hope this helps.
Overpopulation means more people. The more people there are, the more resources needed to stupport the overpopulation. The more resources that are used the more of a deterioration of our ecosystem therefor causing global warming.
