首页
登录
职称英语
In 2009, how many countries were planting genetically engineered crops? [origina
In 2009, how many countries were planting genetically engineered crops? [origina
游客
2024-10-18
46
管理
问题
In 2009, how many countries were planting genetically engineered crops?
American farmers first planted genetically engineered crops in nineteen ninety-six. Today eighty percent of the cropland for soybeans, maize and cotton in the United States is transgenic. Genetic engineering adds or changes genes in a plant to produce desired qualities. The United States is one of twenty-five countries where farmers planted genetically engineered crops in two thousand nine". An agricultural biotechnology group says planting decreased in Europe. But the amount of cropland planted with the crops rose by an estimated seven percent worldwide. A study examined how genetically engineered crops have affected farming in the United States. It found that many farmers have better harvests, better weed control and fewer losses from insect damage compared to traditional crops. It also found that genetically engineered crops can be better for the environment. For example, crops designed to resist damage by glyphosate need fewer pesticides that are more toxic to the soil. Glyphosate is a chemical used in Round-Up and other weed killing products. But some farmers are using the more toxic herbicides to control weeds. Glyphosate is as important in worldwide food production as penicillin is in medicine for fighting disease. However, there should be better use of glyphosate-resistant crop technology
选项
A、96.
B、80.
C、25
D、7
答案
C
解析
细节题。在2009年已经有25个国家开始种植转基因作物。
转载请注明原文地址:https://tihaiku.com/zcyy/3806324.html
相关试题推荐
WhichofthefollowingstatementsaboutTigerWoodsEffectisCORRECT?[original
WhichofthefollowingisNOTmentionedasahelpininterviews?[br][original
WhichofthefollowingisNOTmentionedasahelpininterviews?[originaltext]
FoodwasteinSeattleisfinallymadeintoakindof[originaltext](11)Int
Themanstopstotakehisdogoutsidetodoexercisebecause[br][originaltext
WhatdoestheMinisterwanttokeepaneyeon?[br][originaltext]RussianE
WhatdoestheMinisterwanttokeepaneyeon?[br][originaltext]RussianE
WhatdoestheMinisterwanttokeepaneyeon?[originaltext]RussianEmergen
Whatisthefocusofthenews?[originaltext]FINAsaidGreekgovernmentoffi
HowmanyapartmentswillbebuiltinHarHoma?[originaltext]Israelhasanno
随机试题
[originaltext]Closeyoureyes.Pictureyourclosestfriend.Maybeyouseehe
[originaltext]TheUSpresident’shelicopterflewoverthepathofthedeadly
Text3Intheearly1960sWiltChamberla
下列各类图元,属于基准图元的是()。A.轴网 B.楼梯 C.天花板 D.桁
嵌顿性疝为A.疝内容物易回纳入腹腔 B.疝内容物不能完全回纳入腹腔 C.
某教师设计了“体会《红楼梦》的艺术魅力”专题,这一专题属于《普通高中语文课程标准
由于旅游产品异地消费及所有权不可转移等特点,闲暇时间对于旅游需求量的多少具有较其
现在信用制度具有加快资金周转、稳定金融市场和促进经济发展的宏观作用。对个人来说,
合伙企业具有法人资格。( )
(2019年真题)下列各项中,会导致试算不平衡的因素是()。A.重记某项经济
最新回复
(
0
)