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03 Mar 2020, 02:13
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E
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Difficulty:
25%
(medium)
Question Stats:
80% (01:59) correct
20%
(02:18)
wrong
based on 688
sessions
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A report on the likely effects of current levels of air pollutions on forest growth in North America concluded that, since nitrogen is necessary nutrient for optimal plant growth, the nitrogen deposited on forest soil as result of air pollution probably benefits eastern forests. However, European soil scientists have found that in forests saturated with sulfate and nitrate, trees begin to die when the nitrogen deposited exceeds the amount of nitrogen absorbed by the forest system. Since this finding is likely to apply to forests everywhere, large areas of eastern forests of North America are, undoubtedly, already being affected adversely.
Which one of the following most accurately expresses the main point of the passage?
(A) The implication of the report cited is that the amount of nitrogen reaching eastern forests by way of polluted air is approximately what those forests need for optimal growth.
(B) If large areas of eastern forests were increasingly saturated with sulfate and nitrate, the capacity of those forest systems for absorbing nitrogen would also increase.
(C) The type of analysis used by European soil scientists does not necessarily apply to eastern forests of North America.
(D) The eastern forests are the only forests of North America currently affected by polluted air.
(E) Contrary to the report cited, the nitrogen pollution now in the air is more likely to cause trees to die in eastern forests than to benefit them.
Which one of the following most accurately expresses the main point of the passage?
(A) The implication of the report cited is that the amount of nitrogen reaching eastern forests by way of polluted air is approximately what those forests need for optimal growth.
(B) If large areas of eastern forests were increasingly saturated with sulfate and nitrate, the capacity of those forest systems for absorbing nitrogen would also increase.
(C) The type of analysis used by European soil scientists does not necessarily apply to eastern forests of North America.
(D) The eastern forests are the only forests of North America currently affected by polluted air.
(E) Contrary to the report cited, the nitrogen pollution now in the air is more likely to cause trees to die in eastern forests than to benefit them.
12 Mar 2020, 10:42
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Report says --> Nitrogren helps forests in Eastern NA.
EU reports says - Sulphate and Nitrates are harmful to forests and forests will die everywhere including NA.
Conlusion --> Forests of NA are adversely effected.
Gist(Prethinking) --> Even though the report says Nitrogen is helpful newly found evidence says otherwise.
Choice E fits that thinking.
EU reports says - Sulphate and Nitrates are harmful to forests and forests will die everywhere including NA.
Conlusion --> Forests of NA are adversely effected.
Gist(Prethinking) --> Even though the report says Nitrogen is helpful newly found evidence says otherwise.
Choice E fits that thinking.
KeyurJoshi
GMAT 1: 710 Q49 V38
Posts: 147
11 May 2021, 06:39
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(A) The implication of the report cited is that the amount of nitrogen reaching eastern forests by way of polluted air is approximately what those forests need for optimal growth. - This is too specific and does not consider other elements of passage.
(B) If large areas of eastern forests were increasingly saturated with sulfate and nitrate, the capacity of those forest systems for absorbing nitrogen would also increase. - We dont know that.
(C) The type of analysis used by European soil scientists does not necessarily apply to eastern forests of North America. - Goes against the argument.
(D) The eastern forests are the only forests of North America currently affected by polluted air. - We dont know that.
(E) Contrary to the report cited, the nitrogen pollution now in the air is more likely to cause trees to die in eastern forests than to benefit them. - Closest and correct.
(B) If large areas of eastern forests were increasingly saturated with sulfate and nitrate, the capacity of those forest systems for absorbing nitrogen would also increase. - We dont know that.
(C) The type of analysis used by European soil scientists does not necessarily apply to eastern forests of North America. - Goes against the argument.
(D) The eastern forests are the only forests of North America currently affected by polluted air. - We dont know that.
(E) Contrary to the report cited, the nitrogen pollution now in the air is more likely to cause trees to die in eastern forests than to benefit them. - Closest and correct.
