Global Change — Unit test Answers

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 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.

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.

Rising sea levels are a possible global consequence to a change in local environments.

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

Global warming is a theory accepted by a majority of scientists.

Manmade global warming is caused by _______.a.pollutionb.water vaporc.farmsd.species extinction

Explain why entering an interglacial period resulted in an increase in biodiversity on Earth.

What type of climate is found in the tundra?

Explain why scientists are concerned about human activities that cause global warming if global warming is caused by the greenhouse effect and the greenhouse effect is a natural part of Earth’s climate.

Where are tropical wet climates found in the United States?

Use the diagram to answer each question.