Answer:
tar
Explanation:
tar is the reason your lungs go black because it is evaporated into the smoke that you breathe in and is known to be the most known cause of cancer
Genital HSV-1 outbreaks reoccur less regularly than genital HSV-2 outbreaks. There is no cure for genital herpes. Using condoms properly can reduce the risk of cross infection but it is not 100% safe. Genital herpes can still be transferred between partners even with the use of condoms. Once you have herpes, you are at risk of it reoccurring, Research has shown that 80% of people who contract HSV-2 will have at least one occurrence. Generally HSV-2 tends to reoccur four to six times per year. In contrast, only 50% of people who contract HSV-1 will have at least one reoccurrence. The HSV-1 infection only tends to reoccur once a year.
