In unit iv you have learned about natural selection and mutation relative to health issues like tb and head lice. take the same concepts and apply them to pesticide and herbicide use in farming. explain what the potential consequences are for the pests, humans and the environment.

All too oflen. these chemicals are allowed into the marketplace earlier than their influences are fully understood and harms to our health and the surroundings are found years later. The science is an increasing number of clear that even low stages of publicity can harm human health. and kids are specifically inclined. Our countrywide rules governing pesticide use are surprisingly weak. 
But as public situation maintains to develop, opportunity techniques to coping with pests are more and more available and gaining ground in houses, colleges, and agricultural fields throughout.
Pesticides (computer virus killers). herbicides (weed killers), and fungicides (fungus killers) are all pesticides; so are rodenticides and antimicrobials. insecticides come in spray cans and crop dusters, in household cleaners, hand soaps, and swimming pools. insecticides are usually the maximum acutely (at once) poisonous.
Many are designed to attack an insect's brain and nervous system, which can mean they have neurotoxic effects in humans as well. Herbicides are more widely used (RoundUp and atrazine are the two most used pesticides in the world) and present chronic risks. This means ongoing. low-level exposures can increase the risk of diseases or disorders such as cancer, Parkinson‘s disease or infertility and other reproductive harms. 

Iam not sure but to me it with be a or dsorry if i was late! hope this ! : )if you really want me to find out the answer that is correct tell me and i will do more research but the a or d makes sense to me.