Respuesta :
It's the last one because agricultural chemicals have ALOT of effects on humans and the environment.
Answer:
Agricultural chemicals
- increase food production
- have caused human deaths
- are sometimes difficult to destroy
Explanation:
- Though there are agricultural chemicals that boost the yield, they are also responsible for some human deaths.
- These chemicals contain various elements that stay intact for a long time and are apparently undestroyable.
- These elements become a part of the food chain and keep flowing through the food cycle. Excess quantities of these elements prove fatal.