Why is it important for the integumentary system to help the body excrete wastes? to prevent internal stability ;
A) to promote bacterial growth
B) to promote optimal health
C) to keep a balanced pH

It to promote optimal health

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.

i believe the answer is a or 1