Sometimes, the surface of the pacific ocean warms up, causing changes in the weather in some areas. this phenomenon is called el niño. el niño causes the amount of rainfall in some parts of the united states and south america to increase. it also causes droughts to occur in southeast asia and australia. droughts occur when an area receives less rain than it normally does over a certain period.

explain how earth’s spheres may be affected by the droughts brought on by el niño.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

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.