首页
登录
职称英语
【B1】 [br] 【B9】 [originaltext] Throughout history man has changed his physical
【B1】 [br] 【B9】 [originaltext] Throughout history man has changed his physical
游客
2023-08-01
45
管理
问题
【B1】 [br] 【B9】
Throughout history man has changed his physical environment in order to improve his way of life. With the tools of technology he has altered many physical features of the earth. He has transformed woodlands into farmland, and made lakes and reservoirs out of rivers for irrigation purposes or hydroelectric power. Man has also modified the face of the earth by draining marshes and cutting through mountains to build roads and railways.
However, man’s changes to the physical environment have not always had beneficial results. Today, pollution of the air and water is an increasing danger to the health of the planet. Each day thousands of tons of gases come out of the exhausts of motor vehicles, smoke from factories pollutes the air of the industrialized areas and the surrounding areas of countryside. The air in cities is becoming increasingly unhealthy.
The pollution of water is equally harmful. In the sea, pollution from oil is increasing and is killing enormous numbers of algae, fish and birds. The whole ecological balance of the sea is being changed. The same problem exists in rivers. Industrial wastes have already made many rivers lifeless.
Conservationists believe that it is necessary for man to limit the growth of technology in order to survive on earth.
选项
答案
The pollution of water is equally harmful.
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2888652.html
相关试题推荐
[originaltext]Inascientificcontext,theword"chaos"basaslightlydiff
[originaltext]M:Whichuniversitydoyouthinkyou’dliketoattend?W:Well,I
[originaltext]M:Whichuniversitydoyouthinkyou’dliketoattend?W:Well,I
[originaltext]M:Whichuniversitydoyouthinkyou’dliketoattend?W:Well,I
[originaltext]Inordertohaveamoresatisfactoryunderstandingofwhatis
[originaltext]Inordertohaveamoresatisfactoryunderstandingofwhatis
[originaltext]Inordertohaveamoresatisfactoryunderstandingofwhatis
[originaltext]Whyarecollegestudentssopronetosleepdeprivation?Thep
[originaltext]ThehistoryofValentine’sDayisobscure,andfurthercloude
[originaltext]M:Hello.MattEllisspeaking.W:Hello,Dr.Ellis,myname’sPam
随机试题
C
红黏土的形成所必须具备的条件有()。A.地形条件 B.水文条件 C.岩性
资料(一) W集团创立于1988年,是一家从房地产发展起来的企业。20
A市统计局在2014年的工作中取得了较为优异的工作成绩,赵某是该统计局的一名工作
下列关于糖皮质激素所引起的不良反应,错误的是()A.高血压 B.高血
洁净室空气环境使用A.0.2%苯扎溴铵 B.干热灭菌 C.热压灭菌 D.微
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
关于城市燃气输配管道的压力表述中,正确的有()。A.高压燃气管道A:0.8
患者水肿延久不退,肿势轻重不一,四肢或全身浮肿,以下肢为主,皮肤瘀斑,腰部刺痛,
1956年苏共二十大召开以后,以毛泽东为核心的党的第一代中央领导集体发表了《论无
最新回复
(
0
)