首页
登录
职称英语
[originaltext]A team of scientists recently began a project to measure the effe
[originaltext]A team of scientists recently began a project to measure the effe
游客
2023-08-07
21
管理
问题
A team of scientists recently began a project to measure the effects of loud noises on sea animals. If the sounds don’t harm the animals, then the researchers can go ahead with a plan to transmit sound waves through the Pacific Ocean to take the earth’s temperature. Sound travels faster through warm water than cold water. By analyzing the speed of sound through the ocean over time, the scientists will be able to determine if our planet is warming up. The experiment was nearly cancelled more than a year ago because environmental groups fear that the sound will confuse or harm sea animals. So scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1 000 meters beneath the ocean. Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea animals help the researchers keep track of the animals’ movements. If sea animals are distressed by the sounds, they would swim away from the speakers. So far, there aren’t any signs that the animals are being harmed. Researchers at the site noticed that large numbers of sea animals swim near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The tests will continue through September.“If all goes well,”they say, “we can begin measuring temperature changes on our planet.”
12. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
13. Why was the experiment nearly cancelled?
14. For what purpose were radio transmitters used?
15. What was the reaction of the sea animals in the sound tests?
选项
A、To determine whether our planet is warming up.
B、To study the behaviors of some sea animals.
C、To measure the depth of the ocean.
D、To measure the movement of the ocean.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2906686.html
相关试题推荐
[originaltext]Insectsanddiseasesthatattackfoodcropsaremovingasrise
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostinte
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostinte
[originaltext]Thefirstyearofcollegeisoneofthebestandthemostinte
[originaltext](13)Thisisadiscussioncoursewhereyouractiveattendance
[originaltext](13)Thisisadiscussioncoursewhereyouractiveattendance
[originaltext](13)Thisisadiscussioncoursewhereyouractiveattendance
[originaltext]Hungryforthebrighteststudents,manyofthecountry’sstron
[originaltext]Hungryforthebrighteststudents,manyofthecountry’sstron
[originaltext]Hungryforthebrighteststudents,manyofthecountry’sstron
随机试题
Scientistshavecomeupwithatheoryforwhytimeflieswhenyonarehaving
软件文档可分为用户文档和(),其中用户文档主要播过(作答此空)和使用户流。A.
糖尿病患者膳食平衡中蛋白质能量不要多于总能量的()。A.15% B.10%
下列各项中不属于统计行政法规的有()。A.《中华人民共和国统计法实施细则
王女士拟从市场上购买某种证券作为长期投资,目前市场可供选择的证券有:(1)甲公司
在讲授《素描》一课时,高老师先给学生讲述了什么是素描,然后让学生从老师带来的众多
复合地基的增强体穿越了粉质黏土、淤泥质土、粉砂三层土,当水泥掺量不变时,下列哪些
一般地,人的( )在中年之后有下降的趋势A.晶体智力 B.模仿能力 C.创
商业银行在向客户提供理财顾问服务的基础上,接受客户的委托和授权,按照与客户事先
关于无形资产的摊销,下列说法中正确的有()。A.企业获得勘探开采黄金的特许权,且
最新回复
(
0
)