Devry SCI204 week 6 quiz

Question 1.1.(TCO 9) Every day, tremendous amounts of the sun's energy strikes the earth. Why doesn't the earth overheat? (Points : 3)

Much of the heat melts rocks, forming lava deep inside the earth.

Most of the energy is used in photosynthesis, to help plants grow and survive.

The energy mostly is absorbed in various weather systems.

The energy is ultimately radiated back to space.

None of the above

Question 2.2.(TCO 9) The jet streams in the United States generally flow from west to east because of (Points : 3)

ocean currents off the Pacific and Atlantic coastlines.

convection currents between the troposphere and stratosphere.

rotation of the earth.

high pressure systems generated by the sun striking the North American continent.

the moons gravitational pull.

Question 3.3.(TCO 9) Which of the following activities have contributed the greatest amount of carbon dioxide into the atmosphere over the past 100 years? (Points : 3)

Increased farming and production of grains

Increased reliance upon coal, oil, and natural gas

Deforestation of rain forests and other parts of the world

Volcanic eruptions

Widespread forest fires

Question 4.4.(TCO 9) Which of the following illustrates a risk assessment of climate system change? (Points : 3)

Using natural gas instead of coal to generate electricity

Using solar and nuclear power to generate electricity instead of burning coal

Measuring the levels of carbon dioxide in the atmosphere

Determining what sorts of crops will be better suited to the new climate

Determining the best location for a new coal power plant

Question 5.5.(TCO 9) When an automobile heats up in bright sunlight with windows rolled up, the glass in the car functions most like (Points : 3)

rain in the atmosphere

clouds in the atmosphere

sulfate aerosol in the atmosphere

carbon dioxide in the atmosphere

soil in the lithosphere

Question 6.6.(TCO 9) Rising GHGs in the 21st century most confidently predict (Points : 3)

increases in global temperatures and sea levels

decreases in polar temperatures but increases in sea levels

decreases in sea levels but increases in polar temperatures

increases in ocean pH and increases in sea levels

None of the above

Question 7.7.(TCO 9) Rising GHGs in the 21st century most confidently predict (Points : 3)

increases in global temperatures and sea levels

decreases in polar temperatures but increases in sea levels

decreases in sea levels but increases in polar temperatures

increases in ocean pH and increases in sea levels

None of the above

Question 8.8.(TCO 9) Which of the following U.S. national parks would be mostly eliminated by a 1 m rise in sea level? (Points : 3)

Glacier National Park

Yellowstone National Park

Everglades National Park

Yosemite National Park

None of the above

Question 9.9.(TCO 9) Climatologists warn of a tipping point when global temperatures trigger catastrophic events and sea levels rise of close to 2 meters. About how much warmer does the world need to get for this tipping point to happen? (Points : 3)

Increased precipitation over the continents

Melting of the Greenland Ice Sheet

Thermal expansion of the oceans

Melting of the polar ice cap

Increased precipitation over the oceans

Question 10.10.(TCO 9) The most effective way to reduce GHG emissions is to increase (Points : 3)

the production of electric cars

energy efficiency and renewable energy

our reliance on widely available natural gas resources.

the use of coal gasification plants and scrubber technologies to reduce sulfur emissions

expanded oil drilling in ANWR

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