The answer is : Tar
Tar is some sort of residual substance that we commonly found in tobacco products, which could cause the symptoms you've mentioned above
not only that, Tar is a highly carcinogenic substance, which mean that it generate high risk of cancer it get into our system
The answer is hydrolysis.<span />
Answer:
exercise plan and healthy diet
Answer:
Bones of all shapes and sizes support your body, protect organs and tissues, store calcium and fat and produce blood cells.