A. They produce carbon dioxide. B. They have no effect on it. C. They absorb carbon dioxide. D. They convert carbon dioxide into other gases. 相关知识点: 试题来源: 解析 C。解析:文中提到树木作为“碳汇”,从空气中吸收二氧化碳,A选项说树木产生二氧化碳是错误的,B选项说树木对二氧化碳无影响也是...
Carbon dioxide is released into the atmosphere when fossil fuels — coal, natural gas, and oil — are burned. But burning other biological materials also releases carbon dioxide: solid waste, trees, etc. Anytime that carbon dioxide is emitted into the atmosphere in large quantities — especially...
When forests are cleared to make room for farms and cattle, large stores of carbon are released into theatmosphere, which heats up the planet. Also, fossil(化石) fuels are used to operate farm machinery and ship foodaround the globe, all of which generate emissions(排放).Which foods have ...
How carbon dioxide travels through the atmosphereThis NASA video shows the greenhouse gas circulating around the globe over a span of one year.Nov 19, 2014 embed code copied Live Now CBS News 24/7 CBS News Baltimore CBS News Bay Area CBS News Boston CBS News Chicago CBS News Colorado CBS...
When you start removing trees, that stored carbon gets released into the atmosphere as carbon dioxide. Chapter 7: How We Get Around Here’s another challenge: We won’t just need to eliminate the 8.2 billion tons of carbon we produce from transportation today; we’ll need to get rid of ...
aThe researchers then analyzed how much carbon dioxide was in the atmosphere above each of these sites over time. “Less carbon dioxide has remained in the atmosphere, relative to the amount of fossil fuel emissions, today compared to 50 years ago,” Tans said. Even including the effects of ...
The Stop Global Warming calculator shows you how much carbon dioxide you can prevent from being released into the atmosphere and how much money you can save by making some small changes in your daily life. It’s our hope that the calcula
搜索智能精选题目【题文】It is pretty well understood ___ controls the flow of carbon dioxide in and out the atmosphere today.A.that B.when C.what D.how答案【答案】C
thereleaseofcarbondioxideintotheatmosphere二氧化碳向大气层的排放 即学即练单句语法填空 ①Afterhe___(release)fromprison,hewasdeterminedtodevotemostofhistimetohisworkandfamily. ②Sheburstintotears,___(release)allherpent-upemotions. ③Thenewlawreleased...
Carbon trading is a market-based system that allows companies and governments to buy and sell permits and credits to emit carbon dioxide into the atmosphere. It emerged as a direct result of the 1997 Kyoto Protocol calling for a united front to reduce pollutant emissions, carb...