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Description
Things could come to a head in the next few weeks
As part of a new government campaign, parents and caregivers are urged to make giving up smoking for good a new year's resolution
AIM :To study the effects of smoking on the human respiratory system MATERIALS : Cigarettes, white cotton wool, hydrogen carbonate indicator APPARATUS : U-Shaped tube, filter pump, test tube, rubber stopper, retort stand and clamp, rubber connecters, thermometer PROCEDURE 1
Make sure your cannabis product is from a trusted source and is tested for harmful toxins and contaminants
