If the Earth were in a cooling trend,which process below would most likely act as a positive feedback mechanism?
A)increasing the snow cover around the Earth
B)increasing the water vapor content of the air
C)decreasing the amount of low stratified cloud cover around the globe
D)increasing the carbon dioxide content of the air
E)decreasing snow cover in middle and high latitudes

Question

If the Earth were in a cooling trend,which process below would most likely act as a positive feedback mechanism?
A)increasing the snow cover around the Earth
B)increasing the water vapor content of the air
C)​decreasing the amount of low stratified cloud cover around the globe
D)increasing the carbon dioxide content of the air
E)​decreasing snow cover in middle and high latitudes

Quizplus · Accepted Answer

Increasing the snow cover around the Earth would increase the Earth's albedo, reflecting more sunlight back into space, thus enhancing the cooling trend. This acts as a positive feedback mechanism by amplifying the initial cooling.

If the Earth Were in a Cooling Trend,which Process Below