The answer to this question is: (B) <span>evaporation is necessary to the water cycle and precipitation is not always necessary.
In water cycle, the fastest way for nature to distribute is through the rain. Before the rain could happen, Evaporation from the water surface on the earth is necessary to transform water into air that will become the cloud. After that, the clouds will undergo the condenstaion process and transformed into rain.
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Answer:
D.It got hotter, its rate of rotation increased, and it flattened into a disk
Explanation:
The nebula theory proposes that our solar system was born about 4.6billion years ago out of a gigantic interstellar cloud.
These interstellar gases are made up of some gases and some microscopic particles. The gravitational pull by the particles caused the cloud to collapse inward. The collapse triggered increase in temperature and the rate of rotation spiked. This caused the collapsed cloud to flatten into a disk with a centre bulge which later forms the sun.
The river that lies between The USA and Mexico is the Rio Grande
