Answer by Mimiwhatsup: These 'rocks' are actually called fossils they are originally called sedimentary rocks as they are the only rocks that can undergo the certain process. Besides fossils regular rocks can be used to show how long they have been around there are these machines that show how long something has been around and what happened to it.
This would cause petroleum's availability to decrease <span />
It depends on the year. But most likey D, slaves.
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B.
northern Canada
Northern Canada is your answer. It is the closest to the North Pole (a pretty cold place) and is farthest away from the equator (where most of the hottest places in the world is found)
hope this helps</span>
Answer:
The pollution that occurs there is heavier than the surrounding air, which leads to the buildup of smog
Explanation:
The large urban areas, such as Los Angels, are having big problems with controlling the pollution. These areas are large economic centers, with millions of people living in them. All the different economic sectors concentrated in such small space, plus the traffic, are causing lot of pollution of the air, filling it with particles of metal and toxic gases, which are heavier than the air itself. Because they are heavier, they tend to stay low and are much more static, causing buildup of them, resulting in smog.
