Answer: Options A, B and D.
Explanation: shields are layers of old rocks that metamorphosed as a result of mountain-building events. Shields also have sedimentary layers that usually rest on the lava of the rock.
Answer:
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The answer you're looking for is C<span />
They lived in small communities and survived by hunting and gathering. ... Aboriginal and Torres Strait Island communities only used the land for things that they needed - shelter, water, food, weapons. They never overused it or damaged it.
It's called weathering and erosion.
