medium · GMAT Verbal
Burning biofuel instead of gasoline releases less carbon per mile driven. A nation plans to convert existing farmland to grow biofuel crops. But the food those farms once produced must still be grown, and meeting that demand will require clearing forested land, which releases large stores of carbon.
Which of the following is most strongly supported by these statements?
- Burning biofuel actually releases more carbon per mile driven than burning ordinary gasoline does.
- Switching the nation's vehicles entirely to biofuel will eliminate its carbon emissions altogether.
- The plan's net effect on carbon emissions depends partly on the carbon released by clearing forest.
- Growing enough food for the nation is plainly more important than reducing its carbon emissions.
- An acre of forested land always stores far more carbon than any equivalent acre of farmland does.
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