Thee answer to this question is D: increased the technical demands on musicians.
Answer: The crude death rate equals the crude birth rate.
Explanation:
It greatly affected every society on earthy
Answer:
Waste heat from energy convertion plants has led to national warming.
Explanation:
Waste heat from the above plants are emitted directly into the environment, this heat does not become extinct, it becomes part of the environment causing a warming effect, and a negative change in the climate.
Further Explanation
Other than the above cause, global warming also contributes to the warming of the enviroment.
