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
What is the main problem caused by the usual way of plowing?
What is the main problem caused by the usual way of plowing?
admin
2014-01-27
62
问题
What is the main problem caused by the usual way of plowing?
Farmers usually use plows to prepare their fields for planting crops. Plows cut into the ground, and lift up weeds, and other unwanted plants. However, plowing is blamed for causing severe damage to top soil by removing the plants that protect 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 plows. In this method of farming, seeds and fertilizer are put into the soil through small cuts made in the surface of the ground. Low Till Agriculture leaves much or all 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 Farming. Currently, more than 150 million people in South Asia depend on local rice and wheat crops. Farmers grow rice during wet weather. During the dry season they grow wheat in the same fields. Farmers are using the Low Till Farming 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、More than 150 million people.
B、Less than 150 million people.
C、About 100 million people.
D、About 120 million people.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/63Xd777K
本试题收录于:
公共英语五级笔试题库公共英语(PETS)分类
0
公共英语五级笔试
公共英语(PETS)
相关试题推荐
SchoolLunchResearchhasshownthatoverhalfthechildreninBritainwhotaketheirownlunchestoschooldonoteat【C1】
PlayPlayistheprincipalbusinessofchildhood,andinrecentyearsresearchhasshownthegreatimportanceofplayinthe
IncomeTaxFormanyyoungAmericans,graduatingfromcollegemeansfindingajob,movingoutofthedormroomandbeginning
Leonardo’sperformanceconveystheideathatairtravelis______.WhichofthefollowingstatementsisTRUE?
ThespeakersaremakingarrangementsforMonday,TuesdayandWednesday.
______caresmostaboutpoliticsandsocialproblems.______builtanAmericanHeroElvisPresley?
______wasopenedtothepublicasearlyas1978?______isthefirstimperialtombtohavebeenexcavatedinChina?
Withunfamiliarhumanbeings,whenweacknowledgetheirhumanness,wemustavoidstaringatthem,andyetwemustalsoavoidign
Youmaysaythatthebusinessofmarkingbooksisgoingtoslowdownyourreading.(31)probablywill.That’soneofthe(32)fo
A=BuddhistArchitectureB=TaoistArchitectureC=ImperialMausoleumArchitectureBuddhistArchitectureChineseBu
随机试题
AsimpletestthatdetectsnicotinelevelsinurinehashelpedpregnantwomeninBirminghamtocutdownoncigarettesandinsom
卫生行政部门应当自收到医疗事故争议处理申请之日起多少日进行审查,做出是否受理的决定
患者,女性,55岁。糖尿病病史7年,长期胰岛素治疗,某日凌晨突然感到饥饿难忍、全身无力、心慌、出虚汗,继而神志恍惚。护士应首先考虑发生了
房地产的价值就在于其位置,房地产不在于周围的环境如何,重在创造高利润。()
《幼儿园教育指导纲要(试行)》中提到的五个领域,每个领域都可以提炼出一个关键的能力,艺术是()
已知f(u)有二阶连续导数,且z=f在x>0时满足.求z的表达式.
分布式数据库系统中查询处理的一般过程是:由全局数据库管理系统在查询产生结点时对查询进行词法和语法分析,生成(17);(17)进行变换,查询分解,把全局查询分解成若干个子查询,确定处理子查询结果的运算次序和结点;对子查询进行优化和执行:最后是子查询结果的汇总
A、Theyhavedifferentgraduationrates.B、Theygraduateatdifferentages.C、Theydifferalotineducationalbackground.D、They
Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofan【C1】______shouldbemade
TheenormousgrowthofAmericaneconomyhasbeen【C1】______tomanyfactors.ThesizeoftheUnitedStatesandits【C2】______resour
最新回复
(
0
)