Carbon dioxide, and Sulfur dioxide, because you have to know what gas are very dangerous and which ones arent........
If you touch it and it hurts that usually a sign you should not mess with it.
Bulimia is an eating disorder in which someone forces vomiting in order to lose weight.
Therefore, I believe the answer would be throwing up after meals, as well as his teeth being discolored and his cheeks being swollen as a result of his bulimia.
Answer:
Weight training is a type of strength training that uses weights for resistance. By creating a stress to the muscles performed with free weights (e.g. barbells) or by using weight machines, these exercises will enable muscles to be activated and get stronger
Explanation: