Greenhouse gases are best described as _______.a.the result of fossil fuel useb.gases that cause the greenhouse effectc.carbon dioxide and methaned.gases that trap energy from the sun in Earth’s atmosphere
Which of the following would not cause habitat change?a.building a dam on a riverb.a hurricanec.introducing new hiking trailsd.none of the above
Which of the following predictions about global climate change is directly related to an increase in the burning of fossil fuels?a.increased extreme weatherb.decreased food supplyc.global warmingd.falling sea levels
Which of the following is not a consequence of the onset of early spring events?a.floweringb.acidic ocean waterc.fruit ripeningd.hatching eggs
Manmade global warming is caused by _______.a.pollutionb.water vaporc.farmsd.species extinction
Which of the following theories concerning global climate change is the most widely accepted?a.Changes in the global climate will lead to an increase in extreme weather and flooding.b.Global climate is changing due to burning of fossil fuels and deforestation.c.Global climate change will happen rapidly.d.Extra carbon dioxide and global warming will be beneficial.
Natural disasters can have positive effects on an ecosystem.
Rising sea levels are a possible global consequence to a change in local environments.
Global warming is a theory accepted by a majority of scientists.
Which of the following best describes the impact of glaciers upon the surface of the earth?a.Ice buried continents under a few hundred feet of ice.b.Glaciers scraped across the surface and altered landscapes and the course of rivers.c.The passage of glaciers created new ecosystems.d.All of the above.
What determines the length of a geologic time period?
A longer growing season is a result of _______.a.an earlier start to springb.earlier animal migrationc.species having a narrow temperature range toleranced.invasive species
Which period belongs to the Paleozoic era and not the Cenozoic era?
What are some environmental factors that can cause changes in ecosystems?
Many scientists expect global temperatures to _______ by 2100.a.rise 0.4-1.4ºC b.rise 1.4-5.8ºCc.fall 0.4-1.4ºC d.fall 1.4-5.8ºC
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