奥克兰作业代写:全球变暖

2019-12-13 23:01

全球变暖和温室效应是许多科学家担心的两个问题。温室效应是使地球保持适宜居住温度的自然过程。温室效应与全球变暖有什么关系?当人类向空气中排放气体时，温室效应将改变地球的温度。大气中更多的气体意味着地球将开始变暖，其结果是全球变暖。另一方面，如果没有温室效应，地球会太冷，人类无法舒适地生存。为了谈论全球变暖，我们必须首先了解是什么导致了温室效应。最常见的三种温室气体是水蒸气、二氧化碳和甲烷。许多太阳光被水蒸气吸收。水蒸气是一种自然大气气体和它占一个€œ80百分比的自然温室效应;剩下的20%是由于其他气体存在于非常小的量——一种被称为二氧化碳的温室气体是太阳热射线的第二大吸收体。人类在许多方面影响大气中二氧化碳的含量。化石燃料每燃烧一次，就有更多的二氧化碳排放到空气中。汽车尾气排放也增加了空气中的二氧化碳含量，更多的二氧化碳意味着更多的热射线被吸收。这将导致地球温度升高。
奥克兰作业代写:全球变暖
Two issues that worry many scientists are global warming and the greenhouse effect. The greenhouse effect is a natural process that keeps the earth at temperatures that are livable. What does the greenhouse effect have to do with global warming? When humans release gases into the air, the greenhouse effect will alter the temperature of the earth. More gases in the atmosphere means the earth will start to get warmer, and the result is global warming. On the other hand, if there was no greenhouse effect, the earth would be too cold for humans to comfortably exist.In order to talk about global warming, we must first learn what causes the greenhouse effect. The three most common greenhouse gases are water vapor, carbon dioxide, and methane. Many of the sun’s rays are absorbed by water vapor. Water vapor is a natural atmospheric gas and it accounts for “80 percent of natural greenhouse warming; the remaining 20 percent is due to other gasses that are present in very small amountsâ A greenhouse gas known as carbon dioxide is the second biggest absorber of the sun’s heat rays. Humans affect the amount of carbon dioxide in the atmosphere in many ways. Every time fossil fuels are burned, more carbon dioxide is released into the air. Car exhaust emissions also increase the amount of carbon dioxide in the air, and more carbon dioxide means more heat rays being absorbed. This will cause the earth’s temperature to warm.

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