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Now listen to the following recording and answer questions 23 to 25
23
A.The former is helpful while the latter is harmful.
B.The former can be avoided while the latter cannot.
C.The former causes more harm than the latter.
D.The former is natural while the latter is not.
24
A.Large areas of forests are felled.
B.The world population keeps increasing.
C.People create things that release extra heat.
D.There are too many cars that bum gas.
25
A.The polar ice caps and glaciers will melt.
B.More animals will have to find new habitats.
C.The price of gas will keep soaring.
D.There will be more earthquakes.
