Answer: The Precambrian Era comprises all of geologic time prior to 600 million years ago.
Explanation: The Precambrian was originally defined as the era that existed before the emergence of life in the Cambrian Period. It is known that life on Earth began by the early Archean and that fossilized organisms became more and more abundant throughout Precambrian time.
Answer:
Africa is the area which has the lowest amount of naturally available freshwater per capita.
Explanation:
Some parts of Africa have about 3879 m^3 of naturally available freshwater per capita. That is 12% of what is naturally available in South America, for instance.
I am pretty sure the awnser is B the collapse of communism
The overall climate of the Atacama desert is between 0 and 25 degrees Celsius. As well as being a very cold place, the Atacama desert is also
one of the driest, with some areas having not received rainfall in over
300 years.
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I think the answer is B. I hope this helps! :)