In a few sentences, explain what hiv and aids are and how hiv is spread.

HIV stands for Human immunodeficiency virus, and it will attack your immune system. It is possible that it could have been found in your blood, semen, or vaginal secretions. It is transmitted through intercourse or with the act of sharing needles for activities like drugs, ear piercings, or tattoos. There is no true cure to get rid of HIV's, but instead as it gets worse, the final stage of HIV is AIDS. Your immune system will weaken, and that is the fatal factor of getting HIV. AIDS is the severely weakened state the immune system gets in by the final stage of an HIV infection.

not really sure sorry just trying to get points

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.