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
2025-02-03
21
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 Wildlife 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
文中提到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.许多物种灭绝是由于人类的开发,栖息地的变更或毁灭,污染或新的动、植物物种的传人。因此选项A. exploitation、B. pollution和C.habitat alteration均是导致野生动物总数持续下降的原因,只有选项D.Congressional law不是原因,故是本题答案。
转载请注明原文地址:https://tihaiku.com/zcyy/3940903.html
相关试题推荐
_____thecommercialsewingmachinewasintroduced,thousandsofwomenfoundjobs
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Alllivingcreaturespassoninheritedtraitsfromonegenerationtoother.A、the
Alllivingcreaturespassoninheritedtraitsfromonegenerationtoother.A、the
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Sincelifebeganeonsago,thousandsofcreatureshavecomeandgone.Some,
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
Fewcreaturesonearthareascuteastheblackliontamarin,andfewhavea
随机试题
Pronouncingalanguageisaskill.Everynormalpersonisexpertintheskill
Aspeoplecontinuetogrowandage,ourbodysystemscontinuetochange.At
It’smy______(please)tohelpyouwithyourEnglish.pleasure
It’sestimatedthatone-thirdofthecountriesoftheworldareveryrich,a
[originaltext]W:Soyoumentionedhiking.IthinkSouthAfricamusthavealot
被鲁迅称为现代“中国最为杰出的抒情诗人”的是()。A.郭沫若 B.闻一多
五行相乘是指A.五行间的相互资生B.五行间的相互制约C.五行中的一行对其所胜行的
有一老年患者,阴道分泌物增多,外阴瘙痒、疼痛,妇查可见阴道黏膜有散性出血点,有大
保险理赔程序中的责任审核,包括( )。A.保险合同有无中止或者终止的情形 B
在下列物业管理与居住心理效应中,()所产生的印象将在较长时间内影响人们的心理和行
最新回复
(
0
)