A forest was cut down, and the population of monkeys in the area soon decreased dramatically. Deforestation is

A. an example of conservation.

B. a natural hazard that cannot be controlled by humans.

C. a sustainable method of using forests.

D. a limiting factor that affects populations in an area.

D. A limiting factor that affects populations in an area

those sounds of the natural world are bioacoustics, and they're more than a false-color spectrogram of data from the musiamunat conservation area.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.