Air cannot be seen, touched, or tasted, but it is much more than nothing. It is a mixture of various gases. Four fifths of the air is nitrogen gas (N2) and one fifth of it is oxygen gas (O2). Another important component of air is carbon dioxide (CO2). We need oxygen to live, and plants need carbon dioxide to live
Air cannot be seen, touched, or tasted, but it is much more than nothing. It is a mixture of various gases. Four fifths of the air is nitrogen gas (N2) and one fifth of it is oxygen gas (O2). Another important component of air is carbon dioxide (CO2). We need oxygen to live, and plants need carbon dioxide to live
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