If you find yourself on fire, you are told to STOP, DROP
and ROLL. This helps put out the flames because by lying on the flaming
clothes you are smothering the fire, preventing oxygen in the air
getting to it.
Carbon dioxide is a colourless, odourless gas. It
occurs in the atmospheres of many planets, including that of the Earth.
On the Earth, all green plants must get carbon dioxide from the
atmosphere to live and grow. Carbon dioxide is also created by the
burning of any substance that contains carbon, eg, coal, gasoline, and
wood. Carbon dioxide makes up less than 1 per cent of the earth's
atmosphere. It is also the gas in fizzy drinks that makes the bubbles.
It also makes the drinks slightly acid!