Answer:
Metamorphism can be caused by burial, tectonic stress, heating by magma, or alteration by fluids.
Explanation:
The fluid usually consists largely of water. Metamorphic rocks provide a record of the processes that occurred inside Earth as the rock was subjected to changing physical and chemical conditions.
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Which of the three physical regions in South America is Brazil in?
Explanation:
South America can be divided into three physical regions: mountains and highlands, river basins, and coastal plains. Mountains and coastal plains generally run in a north-south direction, while highlands and river basins generally run in an east-west direction.
b. Name any three study areas in physical geography.