Earth has an of about 30 percent, reflecting much of the suns radiation back into space. apex

The correct answer for fill in the blanks is Albedo

The term albedo defines the proportion of radiation or incident ray that is reflected back by the surface. Earth has an albedo of about 30% reflecting back into the space. The rest 70% is absorbed by the earth. The values for albedo is changing as compared to last ice age. It is due the effect of human activities such as global warming, deforestation, pollution, etc.

the answer is c) an oak tree

i would say it is