Hey besties I need help with this astronomy review thing :)

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.

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

b) the inside picture would look at a very high temperature in a very low ph

condenser is used to focus in the light microscope.