What is the name of ice accumulation at the foot of mountain ranges where several valley glaciers emerge, flow laterally, and coalesce?
e.continental ice sheet
2.Which of the following apply to Greenland and Antarctica?
e.continental ice sheet
3.What is ablation?
a.wind driven snow
b.melting or wasting away of glacial ice
c.erosion by meltwater
d.collapse of glacial ice by gravity failure
e.increase in the volume of ice when it freezes
4.Increasing temperatures of earth’s surface and lower atmosphere provide strong evidence that global warming is happening right now. This evidence includes all of the following except:
a.Average earth temperature from land areas and global shipping lanes indicate that average Earth temperature increased 0.74 degrees Celsius during the 20th century.
b.Half of the increase in Earth’s average temperature from the 20th century increased during its last 30 years.
c.Nine of the ten years during the first decade of the 21st Century were in the top 10 warmest years of a 160-year-long record.
d.Earth’s present average temperature is the warmest it has been since 1400, which is as far back as we can go with certainty by direct and indirect evidence.
e.During the recent increase in Earth’s temperature the greatest amount of warming occurred during the day near the equator.
5.What is the name given to a coastal glacial valley that has been drowned by the sea?
6.What is glacial outwash?
b.a stream that originates from beneath a glacier
c.a large wave created by calving of ice
d.sediment deposited by meltwater streams
7.According to the Oregon energy office, which of the following actions will bring about the greatest reduction in CO2 in pounds per year?
a.Insulate your home, install water-saver showerheads, and clean and tune your furnace.
b.Buy a fuel-efficient automobile with a rating of at least 32 mpg to replace your most-used car.
c.Do not drive your car two days a week.
d.Replace your refrigerator with a high-efficiency model.
e.Replace your washing machine with a low-water-use, low-energy model.
8.According to the United Nations what estimated percentage of all energy-related CO2 emissions will developing countries be responsible for by the year 2025?
9.According to the Intergovernmental Panel on Climate Control (IPCC), what is expected to decrease in the 21st century?
b.sea surface temperatures
e.variability of Asian summer monsoons
10.Judge the following sentence according to the criteria given below: The worldwide retreat in mountain glaciers is significant BECAUSE these glaciers' reaction times are much slower than the ice sheets of Antarctica and Greenland.
a.The assertion and the reason are both correct, and the reason is valid.
b.The assertion and the reason are both correct, but the reason is invalid.
c.The assertion is correct, but the reason is incorrect.
d.The assertion is incorrect, but the reason is correct.
e.Both the assertion and the reason are incorrect.
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