Which property of gas do you see in the picture , compressible, has mass , spread out to fill the container, invisible, which of these can be compressed ?, flour, Air , water, orange juice, which gas we need for breathing , oxygen, carbon dioxide , helium, Methane , the plant need  to make food by photosynthesis , oxgen , carbon dioxide , helium , Methane, The main gas in LNG, OXYGEN , carbon dioxide , helium, Methane.

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