Which greenhouse gas has an average lifetime in the atmosphere of a few weeks to thousands of years and is the largest contributor to climate change?

a) carbon dioxide

b) methane

c) nitrous oxide

D) fluorinated gas

How do human actions negatively impact ocean ecosystems? A. Burning of fossil fuels increases the acidity of the oceans. B. Increased tourism and daysailers disrupt the ocean environment. C. The ocean ecosystems are not impacted by human action. D.

The north pole is in daytime for several weeks at a time, with no night time. a. True b. False

Is a green new deal a good idea?

Which of the following is not an international enviormental problem A. Air pollution B. Water pollution C. Global warming D. Overstocked fishing sites

Why do sedimentary rocks have layers of different colors sometimes?

Which of the following statement is most accurate

Which country has the largest salt flats in the world

Which is a major negative impact of the use of nuclear power

The winds shift from southwest to northwest as heavy rains and hail begin to fall in albany, new york. these changes are most likely caused by the arrival of a-) a warm front b-) an mT air mass c-) a cold front d-) a cT air mass

Which of the following statements is true, based on the data in the chart above? 1. Niger has twice as many births as deaths per 1,000 people, but the life expectancy is only 52.6, resulting in a young median age. 3.