1) Moving gas is called a) water b) air c) matter 2) Human being need this gas to live. a) nitrogen b) oxygen c) hydrogen 3) We breathe out mostly a) carbon dioxide b) oxygen c) nitrogen 4) Moving air is called a) movement b) wind c) electricity 5) Strong winds along with heavy rains are called a) clouds b) hurricane c) breeze 6) Gentle are is called a) storm b) breeze c) wind 7) Plants need this type of air. a) oxygen b) carbon dioxide c) nitrogen 8) This type of air is given off by green plants. a) hydrogen b) carbon dioxide c) oxygen




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