Which of the following diseases are more common in tobacco users or those exposed to tobacco smoke? lung cancer heart disease stroke ("brain attack") bladder cancer emphysema (destruction of lung tissue) bronchitis (infection of the airways) laryngeal (throat) cancer mouth cancerdental (tooth) decayasthmaear infectionsall of the above

Ab+cd-> ad+bc is what kind of reaction

Which of the following represents the results of a review of well-controlled studies of vitamin c supplementation on the resistance to, and recovery from, colds? there was a reduction in the duration of colds by 50% on the average. there was a slight effect on reducing the duration and severity of colds for people taking vitamin c supplements. there was a significant reduction in the duration of colds in people who consumed at least one gram a day. there was a significant reduction in the number of colds only in people who consumed > three grams per day.

What should you do if you have an anxiety attack when your parents aren't home?