首页
登录
职称英语
[originaltext] The volcanic ash from the eruption of Mount Saint Helens cert
[originaltext] The volcanic ash from the eruption of Mount Saint Helens cert
游客
2024-06-05
53
管理
问题
The volcanic ash from the eruption of Mount Saint Helens certainly caused a lot of damages, didn’t it? It did, but not as much as experts had predicted. It seems to have a beneficial effect as well. Really? But were crop losses great? Yes. However, since the weather following the eruptions was unexpectedly good, some crop yields remained steady or even increased beyond normal expectancy levels. I’m glad to hear that. But what was the beneficial effect you mentioned?
A mass destruction of various insect populations. How could the ash kill insects without affecting people too? It’s highly abrasive and quickly wears away the outer wax layer protecting insect bodies. Removal of that layer causes the insects to lose body moisture by evaporation. The result is usually fatal. How about that? Sounds like an effective yet natural insecticide.
选项
A、The conversion of volcanic waste to fertilizer.
B、The menace of currently dormant volcanoes around Mount Saint Helens.
C、The eruption of Mount Saint Helens and its effects on the environment.
D、The elimination of volcanic ash by natural means.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3621063.html
相关试题推荐
[originaltext]JoeSmithhadbeenbroughtupinanorphanage.Heenviedpeop
[originaltext]ThevolcanicashfromtheeruptionofMountSaintHelenscert
[originaltext]Centuriesago,duringtheMiddleAges,mostofthelandinEu
[originaltext]Centuriesago,duringtheMiddleAges,mostofthelandinEu
[originaltext]M:Hi,Janet,you’resoluckytobedonewithourfinalexamsand
[originaltext]M:Hi,Janet,you’resoluckytobedonewithourfinalexamsand
[originaltext]W:Hey,Neal,nowthatthemidtermsareover,abunchofusareg
[originaltext]W:Hey,Neal,nowthatthemidtermsareover,abunchofusareg
[originaltext]W:Hey,Neal,nowthatthemidtermsareover,abunchofusareg
[originaltext]Theestimatedone-fifthofchildreninLondon’sschoolswhoc
随机试题
(1)Iftherewasapubwhereyoucoulddrinkyourfillandleavethehangover
建筑屋面雨水管道设计流态,以下哪条错误?A.高层建筑屋面雨水排水宜按重力流设计
流动比率是反映企业利用债权人提供的资金进行经营活动的能力的财务指标。()
马克思指出:“法律不是压制自由的措施.正如重力定律不是阻止运动的措施一样。”这一
设f(x)=acosx+bsinx是R到R的函数,V={f(x)∣f(x)=ac
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
关于社会服务机构人力资源管理的主要内容,下列说法错误的有( )。A.训练与发展
古罗马共和早期教育的主要方法是()A.口授 B.记诵 C.导师制 D.实
(2014年真题)甲公司拟发行可转换债券,当前等风险普通证券的市场利率为5%,股
(2018年真题)根据《合同法》,当事人既约定违约金,又约定定金的,一方违约时,
最新回复
(
0
)