Question

Give scientific reason it is a necessary to prevent uncontrolled uses of pesticides and other chemicals chemicals

Answer 1

There are various reasons why uncontrolled usage of pesticides and other chemicals should be prevented in agriculture.

It affects the environment.

It causes various health hazards in humans.

Leads to pesticides poisoning.

Explanation:

• The term pesticides include a large number of other chemicals like insecticides, weedicides, fungicides,etc.
• Ideally a pesticide should effect only its target pests and should not have any harmful effect on other organisms.
• But this is not the case generally.
• The insecticide not only kill the target pests but also kills other insects too.
• For example, an insecticide used to kill a moth larvae eating leaves of plants can also kill the birds eating that larvae.
• Many pesticides are known to be biomagnifiable, which means that their concentration in the body of organisms increases in each trophic level.
• The best known case of pesticide biomagnification is in the case of pesticide DDT, which had adversely affected the bird populations.
• Increased use of pesticides can also come in human contact through food that we consume, it can lead to pesticide poisoning which causes various health problems in humans including mental retardation in children, hormonal disorders, and even cancer.

Answer 2

answer: due to the more of it , it increases the biological magnification which is harmful for each tropic levels