Which of the following is an example of a global environmental choice? a students deciding to ride bicycles to their schoolb nations meeting to discuss the ozone layerc a town council considering a new nature refuged a family deciding to recycle newspapers

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.