What is nonpoint source pollution? A) pollutants that are found in deep water
B) pollution that comes from a source that can't be tied to a specific location
C) pollutants that are discharged from a specific location
D) pollution in the atmosphere that blocks the sun​

Pollution that comes from a source that can't be tied to a specific location.

Explanation:

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

thats not even an aswer choice