Answer:
C
Explanation:
Mexico gained its freedom in 1820
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.
The answer for this question would be choice A) Angola or the first option.
It's called Coastal flood
