首页
登录
职称英语
Scientists claim that air pollution causes a decline in the world’ s average
Scientists claim that air pollution causes a decline in the world’ s average
游客
2025-05-09
15
管理
问题
Scientists claim that air pollution causes a decline in the world’ s average air temperature. In order to prove that theory, ecologists have turned to historical data in relation to especially huge volcanic eruptions. They suspect that volcanoes effect weather changes that are similar to air pollution.
One source of information is the effect of the eruption of Tambora, a volcano in Sumbawa, the Dutch East Indies ( the former name of the Republic of Indonesia) ,in April 1815. The largest recorded volcanic eruption, Tambora threw 150 million ton of fine ash into the stratosphere. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn in coming solar radiation into space and thus cool the earth. For example, records of weather in Eng land show that between April and November 1815, the average temperature had fallen 4.5°F during the next twenty-four months, England suffered one of the coldest periods of its history. Farmers’ re cords from April 1815 to December 1818 indicate frost throughout the spring and summer and sharp decreases in crop and livestock markets. Since there was a time lag of several years between cause and effect, by the time the world agricultural commodity community had deteriorated, no one realized the cause.
Ecologists today warn that we face a twofold menace. The ever-present possibility of volcanic eruptions, such as that of Mt. St. Helens in Washington, added to man’ s pollution of the atmosphere with oil, gas, coal, and other polluting substances, may bring us increasingly colder weather. [br] According to the passage, which of the following is NOT the cause of dropping temperatures?
选项
A、Volcanic eruptions
B、Mountain torrents
C、Crop and livestock production
D、The floods after the storm
答案
C
解析
选项C是气温下降的结果,而不是原因。
转载请注明原文地址:https://tihaiku.com/zcyy/4068427.html
相关试题推荐
Comparingthetimescalesbetweenmanyfluepidemics,scientistscan______when
Asskiesfillwithmillionsofmigratingbirds,Europeanscientistssaytheseas
Themicroscopeenablesscientiststodistinguishanincrediblenumberandvariet
When(imaginable)scientists(first)suggestedthepossibilitythatoneperson(
Scientistsclaimthatairpollutioncausesadeclineintheworld’saverage
Scientistsclaimthatairpollutioncausesadeclineintheworld’saverage
Scientistsclaimthatairpollutioncausesadeclineintheworld’saverage
Scientistsclaimthatairpollutioncausesadeclineintheworld’saverage
Scientistsareoftenfascinatedbyphenomenathatmanyordinarypeopleignore.A、
Japanesescientistsareatlastactivelyenteringthedebateoverthegovern
随机试题
[originaltext]Thedangerfromearthquakesisveryreal—theyareprobablyth
函数y=ln(1+x2)的单调递增区间是( )
关于医疗用品的卫生标准,下列哪些是正确的()A.进入人体无菌组织、器官或接
A.脊柱中央后前按压 B.脊柱中央前后按压 C.单侧脊柱外侧后前按压 D.
充填采矿法的成本高,房柱采矿法的效率低、资源损失大,只有在不得已的情况下才采用。
引起猩红热的病原菌为()A.B群链球菌 B.金黄色葡萄球菌 C.甲型
施工单位在投标过程中,下列做法正确的是()。A、分部分项工程项目中的单价项目,应
下列关于滴眼剂的叙述错误的是A.滴眼剂指供滴眼用的澄明溶液或混悬液B.洗眼剂是配
【2018案例二~1】 背景资料 某安装公司中标了10台5000m3拱顶罐
患者男,40岁。因大量蛋白尿、高度水肿,诊断肾病综合征入院。肾穿活检病理为:微小
最新回复
(
0
)