Which of these has been controlled in an attempt to reduce the depletion of ozone in earth’s atmosphere?
methods of filtering gasoline
use of chlorofluorocarbons (cfcs)
use of mercury (hg) compounds
methods of radioactive waste storage

b. use of chlorofluorocarbons (CFCs).

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.