Passage 22

                                            Passage 22
        Human environmental interference has halted the approach of a
new ice age and will mean a warmer global climate, a local research has
said. Among the possible consequences, Professor G. Bridges believes,
will be a shrinking of the Great Lakes and inland waters, a northward
shift of the agricultural belt into Canada, and a melting of glacier ice that
could raise ocean levels. A future increase of atmosphere carbon dioxide,
caused by the burning of coal, oil and gas, will be an overwhelming weather
influence. The effect of this use of fossil fuels will be a drier Midwest
climate with drastic effects on agriculture, commerce, and recreation.
“After over population and shortage of food, this is probably the most
serious problem mankind faces” Professor Bridges said.

1. A possible result of the interference may be the _______.
 a. increase of glacier ice
 b. movement of farming areas to the north
 c. shrinking oceans
 d. raising of the levels at the Great Lakes and inland waters

2. The main topic of the passage is the ________.
 a. shifting topic of the Canadian agricultural belt
 b. shrinking of the Great Lakes
 c. approaching ice age
 d. world’s changing climate

3. According to the passage, the entire earth’s climate should ________.
 a. became much cooler  b. remain the same
 c. change only slightly    d. grow somewhat warmer

4. Who or what is primarily responsible for the interference?
 a. Researchers    b. A drier climate
 c. Mankind         d. The new ice age

5. Professor Bridges believes that the interference is due to ________.
 a. new agricultural methods
 b. the recent increase
 c. the burning of coal, oil and gas
 d. less carbon dioxide in the air