QUESTION 1 What is the primary objective of summer expeditions at Swiss Camp on

Question

QUESTION 1 What is the primary objective of summer expeditions at Swiss Camp on the Greenland ice sheet? o a maintain the AWS and download their data ob. slow down glacial melting c. develop new hypotheses about ice sheet movement o d. snowmobile demolition derby o e prove global warming QUESTION 2 According the Oregon energy office, which of the following actions will bing about the greatest reduction in Co2 in pounds per year? O a buy a fuel-efficient automobile with a rating of at least 32 mpg to replace your most used car b replace your washing machine with a low-water-use, low-energy mod c, insulate your home. install water-saver shower heads, clean and tune your furnace Od. do not drive your car two days a week e. replace your refrigerator with a high-efficiency model QUESTION 3 Ice core data show that atmospheric Co2 concentrations were lower during each of the major glacial periods and higher during the warmer interglacial periods o a True b False QUESTION 4 Which of the following gases has a large effect on atmospheric ozone? a carbon dioxide b water vapor c nitrous oxides d methane e CFCs (chlorofluoroc arbons)

Explanation / Answer

ANSWER-

1. To maintain the AWS and download their data.

2. buy a fuel efficient automobile with a rating of atleast 32 mpg to replace your most-used car.

(Since automobile comprises major part of pollution due to fossilfuels)

The interglacial periods are initiated by milankovitch cycles enhanced by rising CO2 concentration ,leading to its more concentration in the interglacial periods than during glacial periods.

4. CFCs (chloroflourocarbons)

CFCs when released into the atmosphere break down the ozone molecules .

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