"Backflows" Are Payments Made by Immigrants Back to Their Home

question 10

True/False

"Backflows" are payments made by immigrants back to their home countries.

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Definitions:

Metamorphosed

Refers to rocks that have undergone a change in mineral composition and texture due to exposure to high temperature and pressure conditions.

Shale

A fine-grained sedimentary rock composed of mud that splits easily into layers, often used in the production of oil and natural gas.

Sandstone

A sedimentary rock consisting of sand-sized minerals or rock grains, compacted and often cemented together over time.

Limestone

A sedimentary rock composed primarily of calcium carbonate, often formed from marine organisms' shells and skeletons.