? Tobacco smoke about 3



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20 TOBACCO


TOBACCO
What’s in a cigarette? What’s in a 1________? Tobacco smoke 2________ about 3________chemicals. Some of which are 4________, others deadly. Here are 3 of the 5________.
Tar: is a 6________ of chemicals such as formaldehyde, arsenic and cyanide, can cause serious 7________ diseases. 8________ percent of the tar from tobacco smoke 9________ in the smoker’s lungs.
Nicotine: Many people are 10________ that 11________ is more 12________ than heroine. A 13________ and 14________ drug, nicotine reaches the 15________ in about 15________. One of the major 16________ of nicotine is an increased 17________ and 18________.
Carbon monoxide: is a 19________ gas formed when a cigarette is 20________. The red 21________ cells 22________ the gas more easily than 23________, so up to 24________ percent of a smoker’s blood may be 25________ carbon monoxide 26________oxygen. Breathing becomes more difficult because the heart has to work harder to pump less oxygen around the body.
From seed to smoke: What do tomatoes and tobacco 27________? They are both a member of the same 28________ family. Tobacco is grown in more than one 29________ countries with 30________ being the largest producer, closely followed by the 31________. Tobacco can 32________ well in 33________ soils so a typical farmer can 34________ a good income from planting this crop. Seeds and fertiliser are often 35________ by British American Tobacco. The seeds are so small that they must be 36________ in seedbeds for 37________ days before transplanting to the field. Two weeks later, soil is carefully pushed up against the seedlings to further protect them and help to develop a good 38________ system. Finally, after a couple of months, the flowering plants and some of the upper leaves are cut to allow more growth in the remaining leaves. The crop 39________ grows towards the harvesting 40________.

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