What are the economic, environmental, and social benefits of creating dams?

Which of these is a major concern of nuclear power plants? air pollution disposal of wastes ozone layer degradation releasing extremely cold water into the environment?

Why do parts of africa and south america experience polar climates

Astronomers classify elliptical galaxies by a. the number of stars they contain b. their colors c. how flattened they appear d. their diameters

Was Yu the Great or Qin Shi Huang the first emperor of China? Need done ASP!

Comparing cinder cones to shield volcanoes:

What was the World Trade Organization decision in 2006 related to genetically modified crops? Individual countries had the right to determine if they were going to allow genetically modified crops to come into their country.

12 out of 50 seventh graders said they would be willing to pay between $21-$30 dollars for a class trip. If there are 350 students in seventh grade, about how many would go oh the trip if it cost $30?

If a population is growing quickly in a small area then what must increase as well

Which body of water is found to the east of costa rica? a. el oc ano pacifico c. el mar del norte b. el oc ano atlantico d. el mar caribe

How old is the milky way galaxy?