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
A、The crop’s blooming period is delayed. B、The roots of crops are cut off. C、The topsoil is seriously damaged. D、The growth of w
A、The crop’s blooming period is delayed. B、The roots of crops are cut off. C、The topsoil is seriously damaged. D、The growth of w
admin
2008-12-10
99
问题
Farmers usually use ploughs to prepare their fields for planting crops. Ploughs cut into the ground and lift up weeds and other unwanted plants. However, ploughing is blamed for causing severe damage to topsoil by removing the plants that protect the soil from being blown or washed away. Many farmers in South Asia are now trying a process called "low-till farming". Low-till farming limits the use of ploughs. In this method of farming seeds and fertilizer are put into the soil through small cuts made in the surface of the ground. Low-fill agriculture leaves much or all of the soil and remains of plants on the ground. They serve as a natural fertilizer and help support the roots of future crops. They take in rain and allow it to flow into the soil, instead of running off. It has been proved that low-till farming increases harvests and reduces water use. And this method reduces the need for chemical products, because there are fewer unwanted plants. Scientists say low-till farming is becoming popular in South Asia, which is facing a severe water shortage. They say the area will become dependent on imported food unless water is saved through methods like low till fanning. Currently, more than 150,000,000 people in South Asia depend on local rice and wheat crops. Farmers grow rice during wet weather. During the dry sees on they grow wheat in the same fields. Farmers are using the low-till method to plant wheat after harvesting rice. Scientists say low-till agriculture is one of the best examples in the world of technologies working for both people and the environment.
选项
A、The crop’s blooming period is delayed.
B、The roots of crops are cut off.
C、The topsoil is seriously damaged.
D、The growth of weeds is accelerated.
答案
C
解析
What is tile main problem caused by the usual way of ploughing?
该题问“传统的耕地方式导致的主要问题是什么?”文中提到,用犁耕地除去了保护土壤免受冲刷的植物,给表层的土壤造成了很严重的损害。据此,可以看出C项“表层土壤严重受损”符合题意。
转载请注明原文地址:https://kaotiyun.com/show/N74K777K
0
大学英语六级
相关试题推荐
Whatshouldwedofirstwhenwemakemistakes?Weshouldacknowledgeit______.
A、Themancanhavearoomwithashower.B、Themancan’thavearoomatpresentC、Themanshouldcometomorrow.D、Themancan’t
WelcometothePublicBusSystem.Itsbusnetwork【T1】______365daysoftheyearandhasservicesthatcantakeyoutoyourdesti
A、KnowledgeofEnglish.B、Communicationskill.C、Creativity.D、Knowledgeaboutcomputer.D题目询问公司可能要求什么条件。对话中女士询问男士是否懂计算机,男士说学习过并
Itisrequiredthatanyoneapplyingforadriver’slicense_____asetoftests.
A—reading,referenceandcopyingJ—lecturehallB—staffonlyK—readingroomforreferencebooksC—closedshelvesforundergradua
Therecanbenodoubtthatthegrowthinadvertisementisoneofthemoststrikingfeaturesofthewesternworldinthiscentury
Thirstyforgrowth,makersofconsumerpackagedgoodshaveforyearsturnedtheirsightstodevelopingmarketsintheeastAsia.
TheSmiths______intheneighborhood,buttheyliveinanothercitynow.
A、Donotarguewithcustomers.B、Donotchangeonsaleitems.C、Donotbargainwithcustomers.D、Donotreturnonsaleitems.D
随机试题
生产者的不确定性源于()
霍乱患者临床上出现休克的主要原因是
A、用于重症支气管哮喘的治疗B、用于解除消化道痉挛C、多用于急性青光眼的抢救D、用于抗幽门螺杆菌E、用于醛固酮增多的顽固性水肿肾上腺皮质激素一般
术前准备未达要求是发生甲状腺功能亢进危象的主要原因。()
李某驾车不慎追尾撞坏刘某轿车,刘某向法院起诉要求李某将车修好。在诉讼过程中,刘某变更诉讼请求,要求李某赔偿损失并赔礼道歉。针对本案的诉讼请求变更,下列哪一说法是正确的?(2015年·卷三·37题)
从咨询公司的角度进行合同谈判,下列需要特别注意的问题有()。
银行间债券市场的交易制度不包括()。
关于清算与交收,下列表述中正确的有()。
知识测验主观题的优点有()。
OntheLosingTraditionalCulture1.现在许多传统文化正慢慢消失2.传统文化消失的原因3.我的看法
最新回复
(
0
)