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  3. A problem related to the【B1】______ for land use is whether crops should be u

A problem related to the【B1】______ for land use is whether crops should be u

游客2024-03-01  63
问题     A problem related to the【B1】______ for land use is whether crops should be used to produce food or fuel. Two areas will be examined in this【B2】______ . Firstly, the problem should be viewed in its【B3】______ perspective. When oil prices rose【B4】______ in the 1970s, countries had to look for【B5】______ to solve the resulting【B6】______ .
    In developing countries, one of the possible answers to it is to produce alcohol from plant material. This has led to a lot of research in this area【B7】______ in the use of sugar. The use of this material resulted from two【B8】______ reasons: a reduction in its price and low production costs.
   【B9】______ . like the sweet potato in tropical regions, and corn and sugar beet in non-tropical regions. The problem with these plants is that they are also the people’s staple food in many poor countries.
   【B10】______ .farmers naturally go for what is more profitable. As a result,【B11】______ . [br] 【B1】
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