“Our atmosphere, thrown as a barrier across the terrestrial rays, produces a local heightening of the temperature at the Earth’s surface,” Irish physicist John Tyndall said in 1862, identifying water vapor and carbon dioxide as natural greenhouse gases trapping heat. Then in 1896, Swedish che...
the earth would be about thirty-three degrees Celsius cooler than it is. So, we need those gases. The problem begins when we add hugequantities ofextra carbon dioxide into the atmosphere. It means that more heat energytendsto be trapped in the atmosphere causing the global temperature togo up...
One possible version:The earth is becoming warmer because of humanactivities, especially the burning of carbon fossil fuels.(要点1)All scientists accept that the levels of carbon dioxidehave increased.(要点2) However, there are very differentattitudes among scientists towards this rise. Some believe...
believe that we should not worry about high levels of carbon dioxide in the air . They predict that any warming will be mild with few bad environmental consequences . In fact ,Hambley states ,"More carbon dioxide is actually a positive thing .It will make plants growquicker; crop...
Pollution, particularly in the form of carbon dioxide gas causes the atmosphere of the Earth to warm. The warmer atmosphere means that energy is... Learn more about this topic: Ocean Pollution | Causes, Effects & Prevention from Chapter 5/ Lesson 6 ...
At that time Mars would have been much warmer and wetter than it is today with an atmosphere composed mainly of carbon dioxide just like that of the earth at the time. Under these conditions it is highly probable that life may have arisen on Mars as well.But even if life did not arise...
Amaturetreecanabsorbupto22kilogramsofcarbondioxideeachyear.一棵成年树每年可吸收多达 22 千克二氧化碳。Butplantationtreesareharvested.但是种植树成才会砍伐。Further,pineandeucalyptus—twocommonlygrownplantationtrees—arehighlyflammable,sogainsincarbonstoragecanquicklygoupinsmoke.此外，松树和桉树——两种常见的种植树—...
on the Mars now,some scientists think there may have been some form of life a long time ago.At that time,the planet had active volcanoes(火山); the atmosphere was thicker and warmer; and there was water.In fact,in some ways the Mars may have been similar to the Earth,where life ...
Earth Care's Sophie Armstrong explores these ques-⑥graph/gra:f/n.图表;坐标图;曲线图tions.⑦rather than而不是,连接两个并列成分。 此处There is no doubt that the earth is becoming warmer(see是在强调句型中连接两个并列主语。Graph 1)and that it is human activity that has caused this glob-⑧...
A. The forests are losing their function in turning carbon dioxide into oxygen.B. Many of our daily uses are related to the tropical forests.C. Tropical plants can be used to make industrial products.D. High carbon dioxide levels will make the earth warmer. ...