Nusia, tanpa air tida akan ada kehidup terdiri atas air. Air, mixture of gases comprising the earth’s atmosphere. Air diketahui menjalankan fungsi penting.
Air is a mixture of several gases, where the two most dominant components in dry air are 21 vol% oxygen and 78 vol% nitrogen. This air pollution causes various problems including smog, acid rain. Bumi mengandung sejumlah besar air, lebih kurang 1,4 x 109 km3, yang terdiri atas samudera, laut, sungai, danau, gunung es, dan.
Air can be polluted by some gases (such as carbon monoxide, hydrocarbons, and nitrogen oxides), smoke, and ash. The air gets thinner as elevation climbs because there are fewer air molecules up there. Oxygen has a molar mass of 15.9994 g/mol and nitrogen has a. Air jenis ini mengandung kotoran, karena terkontaminasi dengan debu, industri dan lain sebagainya.
The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both. Mountain climbers often have to use canisters of oxygen as they climb above 3,800. Arti kata air adalah air n 1 cairan jernih tidak berwarna, tidak berasa, dan tidak berbau yg terdapat dan diperlukan dl kehidupan manusia, hewan, dan tumbuhan yg secara kimiawi mengandung. Air atmosfir adalah air yang biasa dikenal dengan istilah air hujan.