Answer:
Before mountain building occurred, the area was underwater.
Explanation:
Through excavation, fossils that are of marine animals are often found high on mountain ranges. This seems weird from today's perspective, as marine animals can only be found in ocean waters, and there is no way they can travel on land and upon the mountains. Earth has changed a lot throughout history though, so such occurances are actually not that weird.
The mountains in Pennsylvania are such a place, with an abundance of marine fossils. When we look at the geological past of what is now Pennsylvania we can easily see why this is the case. The whole area was actually underwater for millions of years. This was the case before mountain building occurred here when part of the ocean floor raised high above the surface of the water and created land. As the crust was going up, the fossils on it went up as well.
Mexico, I believe was the second to become independent, after the United States
The movement that led to the independence of Bangladesh was very similar to the movement that led to the formation of Pakistan. This is because the separation of these nations can be traced back to the independence of India. When India became independent in 1947, Pakistan separated from the new nation. Similarly, when Pakistan gained its independence from India, Bangladesh separated from the new country. Therefore, these two processes can be seen as subsequent and parallel.
The smallest particle from rocks is clay
A city that has a problem with smog is most likely a MDC and is experiencing it due to heavy air pollution. <span />