首页
登录
职称英语
Acid rain is a very serious air and water pollution problem. Many people fee
Acid rain is a very serious air and water pollution problem. Many people fee
游客
2023-08-31
15
管理
问题
Acid rain is a very serious air and water pollution problem. Many people feel-that it is the most serious pollution problem that we now face. Scientists say that plant and animal life in thousands of lakes in the United States and Canada has already been destroyed by acid rain.
Acid rain forms in the upper atmosphere. There, sulfur dioxide and nitrogen oxides mix with water vapor. They mix with water vapor to form sulfuric acid and nitric acid. When the vapor condenses and rain falls, the acids fall with it. Every time acid rain falls in a lake, the level of acid in the lake rises. Over time, it can rise to the point at which plants and insects cannot survive. Without plants, which supply oxygen, and insects, which supply food, fish die. The lake becomes a dead lake.
The problem of acid rain has greatly increased in the last few years. Most of the blame for acid rain has been placed on industries. However, some people feel that ineffective air pollution laws are also to blame for the acid rain problem.
A few years ago, many cities and states passed local air pollution laws. The laws were written to impr9ve the air quality in the cities and states. However, the laws usually didn’t say anything about the amount of pollution that an industry could pump into the air. Industries found a way to meet the new pollution laws without reducing the amount of pollution they released. They met the new standards by building taller smokestacks.
With the taller smokestacks, air pollutants were released higher up into the atmosphere. The wind carried them far away from the polluting factory. To the people near the factory, the air seemed cleaner. However, the pollution that they once got was now coming down hundreds of miles away in the form of acid rain. [br] Which is the best title for the passage?
选项
A、Acid Rain: A Environmental Disaster
B、Who Is To Blame
C、Formation of Acid Rain
D、New State and Local Air Pollution Laws
答案
A
解析
文章讨论的主题是酸雨的形成及其危害。
转载请注明原文地址:https://tihaiku.com/zcyy/2974300.html
相关试题推荐
Ifaneconomistwereaskedwhichofthreegroupsborrowmost—peoplewithris
Ifaneconomistwereaskedwhichofthreegroupsborrowmost—peoplewithris
Ifaneconomistwereaskedwhichofthreegroupsborrowmost—peoplewithris
Ifaneconomistwereaskedwhichofthreegroupsborrowmost—peoplewithris
Iamoneofthemanycitypeoplewhoarealwayssayingthatgiventhechoice
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
Cultureshockisaspecialdiseaseforpeoplewhohavesuddenlymovedtoaf
随机试题
Researchersinvestigatingbrainsizeandmentalabilitysaytheirworkoffers
IseenoconflictinwhattheBibletellsmeaboutGodandwhatsciencetel
根据《物权法》的规定,下列哪一类权利不能设定权利质权()A.专利权 B.应
患者,女,38岁,因1h前呕吐咖啡色血性物500ml并排黑粪一次急诊求治。既往有
给婴儿开始添加辅食的合适时间( )。A.2~4个月 B.4~6个月
ETF份额申购和赎回的程序不包括( )。A.申购和赎回申请的提出 B.申购
下列梅毒患者标本不能进行直接显微镜检查的是A、下疳分泌物B、皮疹渗出液C、淋
()是兼具住宅使用功能和办公经营功能的商业不动产。A.公寓 B.商铺 C
政府财政导向投资模式的特点包括( )。A.公共性 B.基础性 C.战略性
“收入以双薪家庭为主,支出随成员固定而趋于稳定,但子女上大学后学杂费用负担重。”
最新回复
(
0
)