Which of the following statements is true?
the main factors determining biome conditions are wind and soil type.
a niche is the role an organism has in an ecosystem.
the number of organisms in an ecosystem is an abiotic factor.
biomes generally follow man-made boundaries, like country borders.

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.

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explanation:

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