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The environmental surroundings are everything around you - the air, the land, and the rivers and oceans. The atmosphere is composed of several gases, water vapor, and dust particles. The important gases are nitrogen, oxygen-argon, carbon dioxide, neon, helium, hydrogen, ozone, etc. By volume, nitrogen is 78% and oxygen by about 21%. Together, these two gases make 99 % volume of the atmosphere, the rest 1% also important for us. Nitrogen is used by the plants for their survival. But plants cannot take nitrogen directly from the air. Bacteria that live in the soil take nitrogen from the air and…mehr

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The environmental surroundings are everything around you - the air, the land, and the rivers and oceans. The atmosphere is composed of several gases, water vapor, and dust particles. The important gases are nitrogen, oxygen-argon, carbon dioxide, neon, helium, hydrogen, ozone, etc. By volume, nitrogen is 78% and oxygen by about 21%. Together, these two gases make 99 % volume of the atmosphere, the rest 1% also important for us. Nitrogen is used by the plants for their survival. But plants cannot take nitrogen directly from the air. Bacteria that live in the soil take nitrogen from the air and change its form so that plants can use it. Air is extremely important for several cycles and makes life possible on earth (https://sciencing.com/importance-air- 6330367.