Answer:
downwind of a nuclear power plant
Explanation:
Living in close proximity to a nuclear power plant or coal-burning plant is not something that would be preferable by most people, especially when it comes to living on the downwind side of them, but if I had to choose it will be living downwind of a nuclear power plant. The nuclear power plant is not a polluter of the air, so living downwind of it will not be a problem for the human health. The coal-burning plant, on the other hand, is one of the heaviest polluters of the air, as it releases enormous amounts of carbon dioxide. This will have very negative effects to the human health, so it is a situation to be avoided if possible. The nuclear plant does comes with a risk, as most things, but the chances are very small that a catastrophe will occur, and even if it does, it doesn't really matter on which side of it the people are living if they are in the same area as the plant.
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Earthquakes, faults, rifts valleys, and volcanoes
Answer:
The huge sliding cloud on the volcano is called pyroclastic flow, also known as tephra.
Explanation:
The volcanoes, without exceptions, have eruptions. The eruptions differ though, and it is not just the stereotypical eruption with lava flows and gas propelled high into the atmosphere, but there are many other elements. While pretty much all of the elements of a volcanic eruption are dangerous, some more some less, the most dangerous one comes in the form of a sliding cloud.
This sliding cloud, coming down the sides of the volcano and continuing in the valley below it is known as pyroclastic flow or tephra. It is a very dense cloud of very hot gasses, and on top of it moves very fast, so there isn't escape from it really if someone is on its path. The pyroclastic flow has such a devastating effect that it literary manages to scorch and level down pretty much everything on its path, killing every living organism in the process as well.
