A. Eclipses only occur during full and new moons.
Answer:
The difference between a mineral and a rock is (C) A rock is generally made up of an aggregate of minerals, but this is not a requirement. Rocks can also be made up of non-mineral matter.
Explanation:
Physical factors that affect population density include water supply, climate, relief (shape of the land), vegetation, soils and availability of natural resources and energy. Human factors that affect population density include social, political and economic factors.
Answer:
Explanation:
Mankind seems to learn very little from anything -- good or bad. There are many things you could say about Natural Gas or Oil, but one thing that neither one could do is create another Chernobyl.
People are saying that the cleanest and most efficient way to go would be to use Nuclear Power Plants. I admit that Gas and oil create their own set of environmental problems, but nothing as far reaching as something lasting 35 years as Chernobyl has done
Scientists are bewildered by Chernobyl heating up again. They cannot explain why let alone what can be done. Each of the alternate energy choices have their problems and have their ill effects on the environment.