答案:D.结合If there are more trees,the amount of CO2in the atmosphere will be和常识可知树越多,二氧化碳就会越少,the amount of…的数量,后跟不可数名词,故用little的比较级less,故答案是D. 如果有更多的树,空气中二氧化碳的数量就会越少. 比较级(Comparative Degree)就是将二者进行比较产生的词形,是由形...
The amount of CO 2 in the atmosphere is steadily rising at the present day due to human activities. In pre-industrial times, before 1800, the concentration was ca. 280 ppmv (parts per million by volume, or mixing ratio). Since then it has risen at an increasing rate, as shown by ice...
Carbon emissions are gases such as carbon dioxide(CO2)that come out into the atmosphere, where they make climate change worse. This has also caused the temperature rise. Emissions are caused by all sorts of human activiti...
Recently studies have shown that the earth is getting warmer. The scientists who carried out the studies say a large amount of CO2in the atmosphere is the reason for the warming. CO2is the gas which human and animals give off when They breathe. It is also produced when coal, oil and...
CO2 in the air is rapidly approaching the limits proposed by the Intergovernmental Panel on Climate Change (IPCC)."As long as we're consuming fossil fuels,we're putting out CO2,"says Klaus Lackner,a geophysicist at Columbia University,"We cannot let the CO2 in the atmosphere rise indefinitely...
What may happen if the amount of CO2 in the atmospherereached 400 ppm? A. A sudden drop in temperature may occur in the long term. B. Strong waves may reach the beaches frequently. C. More floods may strike the Earth. D. Se a level may remain stable.3. What can we learn about ...
百度试题 结果1 题目Some satellites can be used to ___ levels of CO2 in the atmosphere , painting a more detailed picture of the impact of global warming.相关知识点: 试题来源: 解析 3、 反馈 收藏
The oceans play an important role in regulating the amount of CO 2 in the atmosphere because CO 2 can move quickly into and out of the oceans. Once in the oceans, the CO 2 no longer traps heat. CO 2 also moves quickly between the atmosphere and the land biosphere (material that is ...
As we saw in the last lecture, a major cause of climate change is the rapid rise in the level of carbon dioxide in the atmosphere over the last century. If we could reduce the amount of CO2, perhaps the rate of climate change could also be slowed down. One potential method involves en...
Despite these pledges, the amount of carbon dioxide in the atmosphere kept rising and continued heating the Earth at an alarming rate ignoring the Scientists warnings that if this warming continues unabated, it could bring environmental catastrophe to much of the world, Through major scientific studie...