首页
登录
职称英语
Since life began eons ago, thousands of creatures have come and gone. Some,
Since life began eons ago, thousands of creatures have come and gone. Some,
游客
2024-01-01
61
管理
问题
Since life began eons ago, thousands of creatures have come and gone. Some, such as the dinosaurs, became extinct due to naturally changing ecologic conditions. More recent threats to life forms are humans and their activities. Man has drained marshes, burned prairies, dammed and diverted rivers. Some of the more recent casualties of man’s expansion have been the dodo, great auk, passenger pigeon, Irish elk, and Steller’s sea cow. Sadly, we can no longer attribute the increasing decline in our wild animals and plant species to "natural" processes. Many species are dying out because of exploitation, habitat alteration or destruction, pollution, or the introduction of new species of plants and animals to an area. As mandated by Congress, protecting endangered species, and restoring them to the point where their existence is no longer jeopardized, is the primary objective of the U.S. Fish and Wilidlife Service’s Endangered Species Program. [br] Which of the following is NOT a cause of increasing decline of wild animal population?
选项
A、Exploitation
B、Pollution
C、Habitat alteration
D、Congressional law
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3325522.html
相关试题推荐
_____thecommercialsewingmachinewasintroduced,thousandsofwomenfoundjobs
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
随机试题
Theinstinct,commonamongpeopleofallages,forkeepingapparentlyusele
AgeStructuresinMexicoandSwedenAgestructurereferstotheperc
Inthepast,degreeswereveryunusualinmyfamily.Today,fiveofmybrot
AnAmericanresearcherhasdevelopedasimpledevicetohelpstopsnoring(打鼾
Thisprogram______computerfilessotheycanbeeasilysentbyemail.A、suppres
中小学校的主要教学用房外需设置窗户,则该外墙与城市主干路的最小距离是( )。A
患者,男,25岁。一年前出现幻觉、妄想、言语紊乱等症状,诊断为精神分裂症,一直服
供电频率超出允许偏差,给用户造成损失的,供电企业应按用户每月在频率不合格的累计时
学习策略的特点有() A.操作性和监控性的有机统一B.外显性和内隐性的有机
要对数据进行填充,可以( )。A.拖动填充柄填充 B.用“填充”对话框进行填
最新回复
(
0
)