We rely on both human evidence (from epidemiology) and animal evidence (from toxicology) to clarify the health effects of toxic exposures. Each provides valuable information, and each has both advantages and disadvantages. Please compare and contrast the two kinds of evidence, and explain their relative merits. Then select two or three environmental toxicants (including one carcinogen) as examples to illustrate the above points.This is the grading criteria:1. Identification of what evidence epidemiology studies provide about health (3 pieces of evidence)2. Identification of evidence from toxicology studies provide about health (3 pieces of evidence)3. Advantages/disadvantages of what from epidemiology studies4. Advantages/disadvantages of what from toxicology studies5. Compare/contrast between the two types studies and discuss their relative merits6. How examples of two/three environmental toxicants illustrate your discussion