What of earths layers is about the same temperature

hope this helps

The temperature of the Earth's crust ranges considerably. At its outer edge, where it meets the atmosphere, the crust's temperature is the same temperature as that of the air. So, it might be as hot as 35 °C in the desert and below freezing in Antarctica

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.