3-2.1、2段翻譯

The earth’s lift-support system has four major components

Scientific studies reveal that the earth’s lift-support system consists of four main spherical system that interact with one another-the atmosphere (air) , the hydrosphere (water), the geosphere (rock , soil, sediment), and the biosphere (living things)

The atmosphere is a spherical envelop of gases surrounding the earth’s surface. Its inner layer, the troposphere, extends only about 17 kilometers (11 miles) above sea level. It contains the majority of the planet’s air that we breathe, consisting mostly of nitrogen (78% of the total volume) and oxygen (21%). The remaining 1% of the air includes water vapor, carbon dioxide, and methane, all of which are called greenhouse gases, because they help trap heat and warm the atmosphere. Almost all of the earth’s weather occurs in this layer.

地球的生命系統有四個主要部分組成

科學研究表明，地球的生命系統包括四個主要的系統，大氣（空氣），水圈（水），地圈（岩石，土壤，沉積物），與生物圈（生物），彼此之間的互動。

大氣是一個球形信封氣體圍繞地球表面。其內層，對流層，延伸大約只有17公里（11英里）海平面以上。它包含的大多數地球上的空氣，我們呼吸，多氮（78 ％的總量）和氧（21 ％）。剩下的1％的空氣，包括水蒸汽，二氧化碳和甲烷，這些都是所謂的溫室氣體，因為它們幫助陷阱熱和熱烈的氣氛中進行的。幾乎所有的地球天氣發生在這一層。