The Global Warming Quiz

Global warming means an increase in the average temperature of the earth's atmosphere near its surface - either from natural or human causes - that may result in a change in global climate patterns.

The greenhouse effect is the normal trapping of the earth's heat in the lower atmosphere, due to the conversion of light into heat as it strikes the earth's surface.

CO2 (carbon dioxide) and CFCs (chlorofluorocarbons) are gases that trap infrared radiation in the atmosphere, contributing to the greenhouse effect.

<p>carbon dioxide and methane</p> Signup and view all the answers

<p>burning of fossil fuels and decomposition of trash</p> Signup and view all the answers

<p>they are the least expensive to use currently</p> Signup and view all the answers

<p>methane gas</p> Signup and view all the answers

<p>The greenhouse effect is the trapping of heat in the Earth's atmosphere by greenhouse gases. Visible light passes through the atmosphere and is converted to heat, which is then trapped and reflected back to the Earth by gases in the atmosphere.</p> Signup and view all the answers

<p>Greenhouse gases include carbon dioxide (CO2), methane (CH4), water vapor, nitrous oxide (N20), and CFCs. They are emitted from natural sources such as volcanoes and animal waste, as well as human activities like the combustion of fossil fuels and increased livestock production.</p> Signup and view all the answers

<p>The current concentration of carbon dioxide in the atmosphere is 391 parts per million (ppm). It has increased from 315 ppm in 1960 and was historically measured to be between 200 and 280 ppm.</p> Signup and view all the answers