Which is a reason that protists are difficult to classify?

A: They are too small.
B: They are all eukaryotes.
C: They have been classified based on what they are not.
D: They have too many shared characteristics.

i think that c)gold was found there

but i am not sure

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.