According to some scientists, which is a cause of global warming? decrease of nitrous oxide
increase in cloud cover
decrease of methane gas
increase in carbon dioxide

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?

Select the best hypothesis explaining why countries may have preferred communism. communism promised jobs after the insecurities of war. communists forced the people to do what they said. communism was fueled by a dislike for democracy. communism provided economic freedom for businesses and workers.