Will the overpopulation of shrews effect the population of red fox by any way

Yes.

Explanation:

Red foxes eat shrews as prey. If there are more shrews, then more red foxes can be sustained in the environment, and the population of red foxes will likely increase.

answer; i believe that the correct answer is (lung);

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.