Asked by JuliAnn Hagar on Jun 12, 2024
Verified
Which group of pesticides,after being applied,would persist in an area the longest?
A) contact insecticides
B) carbamates
C) pyrethroids
D) chlorinated hydrocarbons
Chlorinated Hydrocarbons
Chemical compounds containing chlorine, carbon, and hydrogen, which are used in industrial applications but can be harmful to the environment and health.
Pesticides
Chemical substances used to kill or control pests including insects, weeds, and disease-causing organisms, in agricultural and residential settings.
Contact Insecticides
Chemical substances that kill insects upon direct contact.
- Understand the classification and types of pesticides including chlorinated hydrocarbons, carbamates, pyrethroids, and organophosphates.
Verified Answer
TP
Thejeswi PranalaJun 18, 2024
Final Answer :
D
Explanation :
Chlorinated hydrocarbons, such as DDT, have a long persistence and can remain in soil and water for years after application. They are also highly toxic and have been banned in many countries. The other choices have shorter persistence and lower toxicity.
Learning Objectives
- Understand the classification and types of pesticides including chlorinated hydrocarbons, carbamates, pyrethroids, and organophosphates.