Answer:
<h3>Cancer is caused by changes to certain genes that alter the way our cells function. Some of these genetic changes occur naturally when DNA is replicated during the process of cell division. But others are the result of environmental exposures that damage DNA. These exposures may include substances, such as the chemicals in tobacco smoke, or radiation, such as ultraviolet rays from the sun.</h3>
<h3>Cancer-Causing Substances in the Environment</h3>
Aflatoxins.
Aristolochic Acids.
Arsenic.
Asbestos.
Benzene.
Benzidine.
Beryllium.
1,3-Butadiene.
<h3>I have more items</h3>
<h3>But I don't know how you need</h3>
A or D
is my answer that I think mostly D though
It can be both good and bad. Extreme dieting can make you sick, and you end up being underweight. Minor dieting could be good for you if you're overweight.
An essential nutrient is a nutrient that the body cannot synthesize on its own -- or not to an adequate amount -- and must be provided by the diet. These nutrients are necessary for the body to function properly. The six essential nutrients include carbohydrates, protein, fat, vitamins, minerals and water.