The use of coal to generate electricity in a power plant can often appear to be the least expensive option, but only if the environmental impacts of burning coal are not accounted for. Select the option that best describes some of the environmental impacts of using coal for electricity generation A. Air pollution resulting from burning coal B. Erosion and water pollution from mining operations C. Both A and B are correct D. Neither A nor B are correct

C. Both A and B are correct

Explanation:

Coal is one of the important fuel for the generation of electric energy in the steam generator. Coal is mined from the coal mines and is fed into the steam generator to produce steam that is used to generate electricity.

The mining of coal can affect the environment nearby as it destroys the forest cover or trees nearby. It leads to erosion and water pollution. Also the carbon emission from the burning of the coal releases harmful pollutants inn the atmosphere which causes air pollution.

Thus both options (A) and (B) are correct.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."