Cowsproducemuchmethane(甲烷),theworld'ssecondworstgreenhousegas,astheybreakdownthegrass.Theyarealargesourceofthegreenhousegasesthataredrivingclimatechange.Nowscientistshaveshownthepollutionfromcowscanbereducedbyaddingalittleseaweed(海藻)totheirfood.Recently,theresearchersfromtheUniversityofCaliforniastudied21cowsonafarm...
Cows breaking down the grassin their bodies makes lots of methane(甲烷),and methane is the world'ssecond-worst greenhouse gas(温室气体).However,scientistshave shown that the pollution(污染) from cows can becutdown by adding a little seaweed(海藻) to their food.Scientists first had that ...
Over the five months, the scientists didn’t see any signs that the cows’ stomachs were getting used to the seaweed and starting to produce more methane again. What’s more, the cows that were led seaweed gained just as much weight as the other cows.(结果出乎意料地好。在某些情况下,...
1. B, 细节理解题,根据第一段内容, One cow can release up to500 liters of methane(甲烷) each day. Cows produce more harmful gas than any other livestock (家畜).可知,对环境产生较大危害的是其他家畜,即B符合题意,故选B。2. C,细节理解题,根据第四段内容可知,He tested more than 40 kinds...
Methane is the world'ssecond worst greenhouse gas. The methane comesout of a cow's body mainly as burps(打嗝).Scientists first discovered that seaweed couldhelp control methane from cows several yearsago. But that work was done in a laboratory, andthere were many questions about whether the...
F. Methane. G. Carbon dioxide. . Seaweed.According to scientists, why should cows change their diet? . Because the food they eat is not good for their health. . Because the gas they give out is bad for the earth. . Because people don't have enough food for them. . Because they ...
The flatulent cow's contribution to greenhouse gas levels is well known. But it appears it's not just their gaseous emissions that produce methane - cow pats can increase the amount made in the soil, too.rnGrassland is not normally intensively farmed, and it acts as a sink for greenhouse ...
A cow has one stomach,but it has four separate sections,one of which has a special chemical that helps break down the grass into something the cow's body can use.But the process of breaking down the grass produces much methane(甲烷),the world's second worst greenhouse gas. ...
B. Methane. C. Carbon dioxide. D. Seaweed. 3. According to scientists, why should cows change their diet? A. Because the food they eat is not good for their health. B. Because the gas they give out is bad for the earth. C. Because people don’t have enough food for them. D. ...
Cows produce much methane (甲烷) the world’s second worst greenhouse gas, as they break down the grass. They are a large source of the greenhouse gases that are driving climate change. Now scientists have shown the pollution from cows can be reduced by adding a little seaweed (海藻) to ...