$DDT$ and $2, 4-D$ were introduced:
- ATowards the end of World War $II$
- BTowards the beginning of World War $II$
- CDuring World War $I$
- DJust after World War $I$
Explore More
Similar Questions
In the context of sound levels,$dB$ stands for .........
Easy
View SolutionHigh value of $BOD$ (Biochemical Oxygen Demand) indicates that
MediumNEET 2015
View SolutionDifferentiate between biodegradable pollutants and non-biodegradable pollutants.
Medium
View SolutionWhich of the following non-ionizing radiations causes damage to $DNA$?
Medium
View SolutionWhich of the following is responsible for the increase in soil salinity?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo