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
The pie chart below shows the main reasons why agricultural land becomes less productive. The table shows how these causes affec
The pie chart below shows the main reasons why agricultural land becomes less productive. The table shows how these causes affec
admin
2017-06-30
33
问题
The pie chart below shows the main reasons why agricultural land becomes less productive. The table shows how these causes affected three regions of the world during the 1990s. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
选项
答案
The pie chart shows that there are four main causes of farmland becoming degraded in the world today. Globally, 65% of degradation is caused by too much animal grazing and tree clearance, constituting 35% and 30% respectively. A further 28% of global degradation is due to over-cultivation of crops. Other causes account for only 7% collectively. These causes affected different regions differently in the 1990s, with Europe having as much as 9.8% of degradation due to deforestation, while the impact of this on Oceania and North America was minimal, with only 1.7% and 0.2% of land affected respectively. Europe, with the highest overall percentage of land degraded (23%), also suffered from over-cultivation (7.7%) and over-grazing (5.5%). In contrast, Oceania had 13% of degraded farmland and this was mainly due to over-grazing (11.3%). North America had a lower proportion of degraded land at only 5%, and the main causes of this were over-cultivation (3.3%) and, to a lesser extent, overgrazing (1.5%). Overall, it is clear that Europe suffered more from farmland degradation than the other regions, and the main causes there were deforestation and over-cultivation.
解析
转载请注明原文地址:https://kaotiyun.com/show/A5VO777K
本试题收录于:
雅思写作题库雅思(IELTS)分类
0
雅思写作
雅思(IELTS)
相关试题推荐
Contrarytoearlierconjectures,itmaybethatincreasedatmosphericcarbondioxideasaresultofburningfossilfuelswouldc
Thetechnicalterm"pagination"isaprocessthatleaveseditors,insteadofprinters,assemblethepageimagesthatbecomethe
From1982to1987salesofnewsmallboatsincreasedbetweenfiveandtenpercentannually.
Basedonaccountofvariousancientwriters,scholarshavepaintedasketchypictureoftheactivitiesofanall-femaleculttha
Althoughthe"psychopath"ispopularlyappliedtoanespeciallybrutalcriminal,inpsychologyitissomeonewhoisapparentlyi
SenatorLaskerhasproposedlegislationrequiringthatemployersshouldretainallolderworkersindefinitelyorshowjustcause
DuringtheearlyyearsofEuropeansettlementonacontinentthatwasviewedas"wilderness"bythenewcomers,NativeAmericans,
Oneoffourbabiesarenowborntomothersagedthirtyyearsormore,comparedwithjustoneofsixbornin1973.
Itisoftensaidthathighratesofinflationtendtodiminishpeople’sincentivetosaveandinvest.Thisviewmustbeincorrec
Twentyyearsago,Dr.Field,anotedanthropologist,visitedtheislandofTertia.Usinganobservation-centeredapproachtostu
随机试题
A.主承托区B.副承托区C.边缘封闭区D.缓冲区E.有牙区受力方向与力呈角度的区域是
甲亢患者术前准备可以手术的基础代谢率,至少降至
如图,梁EI=常数,弹簧刚度为k=,梁的质量忽略不计,自振频率为:
关于空场采矿法的特点,说法正确的是空场采矿法要求()。
乙肝疫苗针剂
某国对移动通信市场实施放宽准入政策,几年后,共有6家移动运营商进入市场,2005年,按照移动业务收入计算的市场份额排名如表所示,设。[2006年真题]2006年,企业C2收购了企业C6,其他企业市场份额基本不变,则2006年该国移动通信市场的集中度(
在社会工作介入活动中,()通常也称为改变环境的工作,或中观和宏观社会工作实务。
下列哪些属于影响和制约组织结构的因素?()
邓小平理论是在我国改革开放和社会主义现代化建设的进程中逐步形成和发展起来的。邓小平正式提出“建设有中国特色的社会主义”的命题是在
SuggestopediaI.IntroductionA.BasedonhowthebrainworksandhowwelearnmosteffectivelyB.Derivedfromsuggestionandp
最新回复
(
0
)