首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Which of the following is NOT mentioned as the benefit of growing windbreaks?
Which of the following is NOT mentioned as the benefit of growing windbreaks?
admin
2015-08-26
41
问题
Which of the following is NOT mentioned as the benefit of growing windbreaks?
Soil conservation methods help fanners protect their land from the damage caused by fanning and the forces of nature. One method of soil conservation is the use of windbreaks. Windbreaks are barriers formed by trees and other plants. Farmers plant these barriers around their fields.(27)They stop the wind from blowing soil away. They also keep the wind from damaging or destroying crops.
Windbreaks can be highly valuable for protecting grain crops. For example, studies have been done on windbreaks in parts of West Africa. These studies found that grain harvests were as much as twenty percent higher in fields protected by windbreaks compared to fields without them.
But here is something interesting about windbreaks.(28)They seem to work best when they allow some wind to pass through the barrier of trees or plants around a field. If not, then the movement of air close to the ground will lift the soil. Then the soil will be blown away.
选项
A、They protect the fields from soil pollution.
B、They stop the wind from blowing soil away.
C、They keep the wind from destroying crops.
D、They help to increase the grain harvest.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/FAXK777K
0
专业英语四级
相关试题推荐
Weareattheverycoreofeverycommunicationweengagein.Evenwhenwearenotengagedininterpersonalcommunication,weare
WhileAmericancitiesaresynchronizinggreenlightstoimprovetrafficflowandofferingapplicationstohelpdriversfindpark
Almosteverynewinnovationgoes【C1】______threephases.【C2】______initially【C3】______intothemarket,theprocessof【C4】______is
Accordingtothereport,howmanypeopleareHIV-positive?
Whatisthefirstthingthatpeopleoughttodoinfaceofpollution,accordingtotheauthor?
MissParkinsonbecameinterestedinherownbusiness______.
CaliforniansandNewEnglandersspeakthesamelanguageand______bythesamefederallaws.
IfyouhavereallybeenstudyingEnglishforsolong,it’sabouttimeyou______abletowritelettersinEnglish.
Peopleattendcollegeoruniversityformanydifferentreasonssuchasnewexperiences,careerpreparation,increasedknowledge.
随机试题
犯罪构成要件事实缺乏必要证据予以证明的,可以不起诉。
患者便血色红,食少,体倦,面色萎黄,心悸少寐,舌质淡,脉细,主方宜选患者久病尿血,兼见齿衄,食少,倦怠乏力,气短声低,面色不华,舌质淡,脉细弱,主方宜选
肾阳不振,寒水不化可见下列哪种面色
A.±1%B.±2%C.±3%D.±4%E.±5%美国医学物理学会(AAPM)规定加速器X射线的稳定性每月监测的允许误差为
抢救左心衰急性肺水肿时,下列措施中错误的是
评估指标体系应具有明确的层次结构,每一个子指标体系应相对独立,建立评估指标体系时强调风险分级的明确性,这体现了区域火灾风险评估的()原则。
防守型行业的经营状况在经济周期的上升和下降阶段都很稳定,这种运动形态的存在是因为( )。
某乡镇企业主要生产粮食白酒,2003年度生产经营情况为:(1)取得产品销售收入总额980万元(已扣除了给购货方的回扣20万元);(2)应扣除产品销售成本600万元:(3)发生产品销售费用80万元(其中含白酒的广告费用10万元)、管理费用120万元、财
Theexaminerdidnotknowwhetherto(report)thestudentfor(cheating)or(warning)(him)first.
Ifirstbecameawareoftheunemploymentproblemin1928.AtthattimeIhadjustcomebackfromBurma,whereunemploymentwaso
最新回复
(
0
)