A
A person's environment can influence their personal health such as exposure to certain chemicals increasing the risk of cancer.
Explanation:
The environment has a significant influence on the expression of the gentoype of an organism to cause its phenotype.
Living in a toxic environment will also cause increased risk to diseases. This is because there is the presence of mutagens in a toxic environment. Mutagens, like lead, arsenic, ultraviolet rays, and etc, cause an increased risk of mutations in a population. Increased mutation rates means increased chances of developing cancer in the population.
Learn More:
For more on environmental influences on genotype check out;
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