Which one of the following is an incorrect match?
A. Organochlorine – DDT
B. Carbamate – Carbaryl
C. Organophosphate – Malathion
D. Pyrethroid - Atrazine

Hint: The substances which are used to control pests are called pesticides. Pest can be referred to as any plant, animal, or microorganisms which are harmful to human beings or human concerns.

Complete answer: The substance which can be either a chemical or organic substance that is used to kill or control the pest is called pesticides. Depending on the type of pest the pesticide kills, it can be grouped into four different types. Insecticides are the types of pesticide which kill the insects. Herbicides refer to the pesticide which particularly kills the plants. Rodenticides are harmful to rodents which include rats and mice. Bactericides kill bacteria and fungicides kill or destroy the fungi. Organochlorine is a type of synthetic pesticide which is used all over the world. Chlorinated hydrocarbon derivatives are used as organochlorine pesticides. The type of organochlorine pesticide is dichlorodiphenyltrichloroethane (DDT) which was first used in world war II among the military populations to combat malaria, typhus, and other diseases. Carbamate is an organic compound derived from carbamic acid. A chemical called carbaryl which belongs to the carbamate family is commonly used as an insecticide. An example of an organophosphate insecticide is malathion which is commonly used as a pesticide in agriculture and public health sectors. Pyrethroids insecticides are used for commercial and household purposes as it is harmless to humans. Permethrin, bifenthrin are examples of pyrethroid pesticide. Therefore, option D is the wrong match.
So, option D is the correct answer.

Note: Excessive use of pesticides is harmful to both human and natural environments. It can cause acute health effects in people who are exposed to pesticides. One of the causes of water pollution is a pesticide. Some of the pesticides are persistent organic pollutants that contaminate the soil and grow fruit and flowers.