Which gas do animals add to the atmosphere when they breathe? a. Nitrogen
b. Oxygen
C. Carbon Dioxide
d. Hydrogen

carbon dioxide answer is c

C. Carbon dioxide

Explanation:

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all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

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.