The Soviets distrusted US foreign policy because they thought it aimed O to encroach on Eastern Europe.
O to increase US influence and control.
O to create an alliance with China.
O to gain control of Cuba.

i believe the answer would be 1.

c.) the country needed a stronger central government.

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth