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Greenhouse Effect

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when the gases in Earth’s atmosphere trap heat from the Sun and keep the planet warm

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97% of scientists believe what is causing climate change? Options: Animals and Plants, Eco-Friendly Cars, Humans, Conservation of energy

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Humans

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Renewable energy sources

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sources of energy that will never go away or be used up

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Non-renewable energy sources

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Sources of energy that can go away and be used up

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Why do we want to use more renewable energy sources?

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They cause less pollution

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Why don't we want to use as much non-renewable energy sources?

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They cause pollution and CO2 to be put into our air/atmosphere

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Which change has most likely contributed to a rise in surface temperatures on Earth? Options: The world birth rate dropped to less than 22 births per 1,000 people per year. The president of the United States signed a law that created one of the country’s largest nature parks. Farmers increasingly use chemical fertilizers that allow nitrogen and phosphorous to enter water sources. Humans began using work-saving technologies that release carbon dioxide and methane.

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Humans began using work-saving technologies that release carbon dioxide and methane.

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The graph shows changes in carbon dioxide (CO2) concentrations and surface temperatures on Earth from the years 1880 to 2000. Why do carbon dioxide concentrations and surface temperatures show the relationship seen in the graph? Options: because lower carbon dioxide levels mean more heat is retained in Earth's atmosphere, because higher carbon dioxide levels mean more heat is retained in Earth's atmosphere, because lower carbon dioxide levels mean less heat is retained in Earth's atmosphere, because higher carbon dioxide levels mean less heat is retained in Earth's atmosphere

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because higher carbon dioxide levels mean more heat is retained in Earth's atmosphere

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Which of the following can affect how much energy will be absorbed by Earth's atmosphere? Options: carbon dioxide, nitrogen dioxide, argon, nitrogen

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carbon dioxide

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What adds to global warming by decreasing the amount of carbon dioxide removed from the atmosphere? Options: industrialization, burning fossil fuels, deforestation, polluting the oceans.

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deforestation