AP BIOLOGY

ECOLOGY

HUMANS AND THE BIOSPHERE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The energy to power machinery comes mostly from ____
A
Solar Power
B
Wind
C
Fossil Fuels
D
Nuclear Power
Explanation: 

Detailed explanation-1: -The energy conversion goes from chemical energy stored in the fuels, to heat energy as it burns which is converted to kinetic energy as it drives large turbines and finally this is converted to electrical energy. The problem with burning fossil fuels is their effect on the environment.

Detailed explanation-2: -Fossil fuels-including coal, oil, and natural gas-have been powering economies for over 150 years, and currently supply about 80 percent of the world’s energy.

Detailed explanation-3: -Fossil fuels may be used to drive turbines, reciprocating engines, and other prime movers that provide mechanical power for rotating machinery. Electric motors can also be used for the same purposes as well as for pumps, fans, and air compressors.

There is 1 question to complete.