首页
登录
职称英语
[originaltext]Even the dirt on the ground is likely making climate change worse
[originaltext]Even the dirt on the ground is likely making climate change worse
游客
2024-01-22
42
管理
问题
Even the dirt on the ground is likely making climate change worse, a new study finds.
Scientists studied device readings, soil measurements, plant growth details and satellite observations from around the world. Their work is the most complete study yet on the subject. They found a sharp increase in carbon released into the atmosphere by bacteria and fungi in soil from 1990 through 2014. Researchers explain that the carbon comes from the dead plants and leaves the microbes eat. As temperatures rise, the microbes eat more. And the more they eat, the more carbon they make into carbon dioxide and release into the atmosphere. This uncontrolled cycle speeds up and intensifies climate change, says Jerry Melillo of Marine Biological Laboratory in Massachusetts. Melilo was not part of the study.
Overall, soil releases about nine times more carbon than human-caused activities. But that is part of a natural cycle: The amount of carbon released into the air is about equal to the carbon oceans and plants take in. However, carbon released from fossil fuel causes an imbalance. Burning coal, oil and natural gas puts more carbon into the atmosphere than nature can take out. The additional carbon heats the air and soil. And as the air and soil get hotter, the earth will release yet more carbon that it has been holding. If something isn’t done, “we are really in trouble,” said Rattan Lal of Ohio State University, who wasn’t part of the study. He added that proper soil conservation can help keep more carbon in soil. Conservation methods include avoiding turning the soil, covering off-season crops and leaving crop deposits on the ground.
Questions 19 to 21 are based on the passage you have just heard.
19. What does the speaker say about the new study?
20. What can we learn about carbon release?
21. What does Rattan Lal say at the end of the talk?
选项
A、Soil releases less carbon than human-caused activities.
B、Fossil fuel is the biggest release source of carbon dioxide.
C、Carbon released from fossil fuel causes an imbalance in nature.
D、Soil releases more carbon than the nature can take out.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3383486.html
相关试题推荐
和亲(peace-makingmarriage)政策可以追溯到西汉时期(theWesternHanDynasty)。当时西汉政府为了缓和与匈奴的
TheImportanceofChangeForthispart,youareallowed
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext](22)Sportshaveunwrittenrules,sodoesbusiness—andviolato
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]Passionfruitistheediblefruitofthepassionflower.(16)Sp
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]M:EnglishLanguageCenter.HowmayIhelpyou?W:Yes.I’mcalli
[originaltext]W:Heytaxi!M:Whereto?W:Well,I’mgoingtotheNationalMuse
随机试题
[originaltext][5]Scientistssayahugepercentageofbirdspeciesareinda
CompletethesentencesbelowusingNOMORETHANTWOWORDSfromthepassage.Writ
[originaltext]M:Hi,Rose,youaresoabsorbedthatyoudidn’tevenknowIcame
某教研室组织教师学习《义务教育语文课程标准(2018年版)》,教师们注意到新课程
财务尽职调查重点关注标的企业的()财务业绩情况。A.期望 B.预计
债券市场所说的年利率都是指()A.通货膨胀率 B.保值贴补率 C.名
患者,男性,62岁,因寒战、高热2d入院。血液培养24h后观察到血培养瓶浑浊并有
已知298K下=-200.66kJ·mol-1,则在同一温度下甲醇的标准摩尔气化
为改善空气质量,天津成为继北京之后第二个进行煤炭消费总量控制的城市。从2012年
职业伤害事故分类中,物体打击伤害是指落物、滚石、()等造成的人身伤害。
最新回复
(
0
)