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A main absorber of ultraviolet radiation in the atmosphere is .
Undocumented Immigrants
Individuals residing in a country without the legal permission or necessary documentation required by immigration laws.
Legal Immigrants
Individuals who have been granted the right to live permanently and work in a country other than their own, following the legal processes of immigration.
Reagan Administration
The presidency of Ronald Reagan, the 40th President of the United States, from 1981 to 1989, noted for conservative policies, economic reforms, and the escalation of the Cold War.
Communist Nations
Nations that adopt communism as their political and economic system, aiming for a classless society where property is publicly owned.
Q20: _are the largest landforms produced by mountain
Q25: The steepest beaches tend to be those
Q46: _is a grave atmospheric pollution concern of
Q48: On the equatorward side of each subtropical
Q53: Chlorine in the stratosphere will turn ozone
Q68: Mountain streams running from a tributary valley
Q87: _is compressed snow which might change into
Q90: Adiabatic processes cause cooling by_ .<br>A) convection<br>B)
Q120: During the last Ice Age, sea level
Q122: Solar energy is also known as_ .<br>A)