The change was also largely driven by increasing carbon dioxide and other human-made emissions(排放物) into the atmosphere.Much like sports writers who start their preseason predictions based on the final buzzer(蜂
If the amount of carbon dioxide (二氧化碳) in the atmosphere doubles, there will probably be a rise in the earth's temperature of between I and 4. This may seem a small increase, but it would be enough to cause major changes in geography and agriculture. Large areas of the world would...
The modern atmosphere supports many forms of complex life that would not have been able to exist in Earth’s first atmosphere because the oxygen level was too low. Also, if atmospheric methane and carbon dioxide were as abundant now as they were in Earth’s earliest atmosphere, the planet’...
s first atmosphere because the oxygen level was too low. Also, if atmospheric methane and carbon dioxide were as abundant now as they were in Earth’s earliest atmosphere, the planet’s temperature would likely be too hot for most species living today. How and when did the atmosphere change...
Which layer of the atmosphere has the lowest temperature? What is the coldest layer of the atmosphere? What is global warming doing to the ozone layer? What is the highest layer of the atmosphere? Which layer in the atmosphere contains the most water vapor and gases?
The scientists plan to transport 100 kilos of it to a CIP lab in Lima that will imitate the complex Martian atmosphere – which contains mostly carbon dioxide – and expose it to extreme ultraviolet(紫外线的) radiation. If the varieties selected for next month’s experiment don’t adapt to ...
A greenhouse is a building made of glass which is used for keeping plants warm when the outside temperature is low. In a similar way there are several gasses in the atmosphere which trap(捕捉) the heat produced by the sun and prevent it from escaping. These gasses are known as “greenhou...
Carbon dioxide, which traps heat in the atmosphere and helps regulate the planet's surface temperature, is constantly beingexchanged between the atmosphere on the one hand and the oceans and terrestrial plants on the other. 选项: A、 A. exchanged between the atmosphere on the one hand and the...
When forests are clcared to make room for farms and livestock, large stores of carbon are releascd into the atmosphere, which heats up the planet. Also, fossil fuels are used to operale farm machinery, make fertilizer, and ship food around the globe, all of which generat...
constant average temperature, such emissions from the planet must balance incoming solar radiation. If there were no carbon dioxide in the atmosphere, heat would escape from the Earth much more easily. The surface temperature would be so much lower that the oceans might be a solid mass of ice...