首页
登录
职称英语
California has been facing a drought for many years now, with certain areas e
California has been facing a drought for many years now, with certain areas e
游客
2024-01-24
61
管理
问题
California has been facing a drought for many years now, with certain areas even having to pump freshwater hundreds of miles to their distribution system. The problem is growing as the population of the state continues to expand. New research has found deep water reserves under the state which could help solve their drought crisis. Previous drilling of wells could only reach depths of 1,000 feet, but due to new pumping practices, water deeper than this can now be extracted (抽取). The team at Stanford investigated the aquifers (地下蓄水层) below this depth and found that reserves may be triple what was previously thought.
It is profitable to drill to depths more than 1,000 feet for oil and gas extraction, but only recently in California has it become profitable to pump water from this depth. The aquifers range from 1,000 to 3 ,000 feet below the ground, which means that pumping will be expensive and there are other concerns. The biggest concern of pumping out water from this deep is the gradual settling down of the land surface. As the water is pumped out, the vacant space left is compacted by the weight of the earth above. Even though pumping from these depths is expensive, it is still cheaper than desalinating (脱盐) the ocean water in the largely coastal state. Some desalination plants exist where feasible, but they are costly to run and can need constant repairs. Wells are much more reliable sources of freshwater, and California is hoping that these deep wells may be the answer to their severe water shortage.
One problem with these sources is that the deep water also has a higher level of salt than shallower aquifers. This means that some wells may even need to undergo desalination after extraction, thus increasing the cost. Research from the exhaustive study of groundwater from over 950 drilling logs has just been published. New estimates of the water reserves now go up to 2,700 billion cubic meters of freshwater. [br] How could California’ s drought crisis be solved according to some researchers?
选项
A、By building more reserves of groundwater.
B、By drawing water from the depths of the earth.
C、By developing more advanced drilling devices.
D、By upgrading its water distribution system.
答案
B
解析
细节题。原文第一段第三句指出,新的研究已发现地下深水储备可以帮助加利福尼亚州解决干旱危机。由此可知,从地下深处抽水可以解决干旱问题,故答案为B。文中所提及的淡水储备都是自然形成的,而非人为建立水库进行储备的,A项与原文不符,故排除。C、D两项原文均未提及,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/3388978.html
相关试题推荐
AfederaljudgeinCaliforniahasdismissedalawsuitagainsttheCoca-Colac
AfederaljudgeinCaliforniahasdismissedalawsuitagainsttheCoca-Colac
AfederaljudgeinCaliforniahasdismissedalawsuitagainsttheCoca-Colac
AfederaljudgeinCaliforniahasdismissedalawsuitagainsttheCoca-Colac
Decliningmentalfunctionisoftenseenasaproblemofoldage,butcertain
Decliningmentalfunctionisoftenseenasaproblemofoldage,butcertain
Californiahasbeenfacingadroughtformanyyearsnow,withcertainarease
Californiahasbeenfacingadroughtformanyyearsnow,withcertainarease
[originaltext]Franceisfacingpotentiallymorethan$1billioninlostrevenue
[originaltext]Franceisfacingpotentiallymorethan$1billioninlostrevenue
随机试题
Lookatthenotesbelow.YouwillhearamancallingtheHeadOfficeofPortman
Thepassagesuggeststhatalackofmodernsanitationwouldmakewhichofthefo
Whatcausesmentopursuetopmanagement?Psychologistsoncebelievedthatt
Secondhandsmokeisaccountablefor42,000deathsannuallytononsmokersin
[originaltext]W:Hello,Peter.Igreatlyregret-thatIcouldn’tgotoyourpar
下列关于测绘执业资格管理的说法中正确的有( )。A.《中华人民共和国注册测绘师
关于B2B电子商务模式,下列说法中不正确的是()。A.交易对象集中在生活消费品
(2017年真题)甲公司系增值税一般纳税人,适用的增值税税率为13%。2
某工业企业装卸货物产生突发的撞击声,根据《工业企业厂界环境噪声排放标准》,下列关
某研究欲比较单纯肥胖者(n1=8)与正常人(n2=10)血浆总皮质醇是否有差异,
最新回复
(
0
)