Vedclass
Class 12BiologyEnvironmental IssuesPollution
Easy

Which of the following metals is a water pollutant and causes sterility in human beings?

  • A
    $As$
  • B
    $Mn$
  • C
    $Mg$
  • D
    $Hg$
Share

Explore More

Browse All

Question Bank

12

All Subjects

Class 12 Questions

Class 12

Biology Questions

Chapter

Environmental Issues

Subtopic

Pollution

Similar Questions

$A$: Water hyacinth is one of the most invasive weeds.
$R$: It increases the dissolved oxygen of water.

Medium
View Solution

$BOD$ is a standard measure used for the quantitative expression of which of the following?

Medium
View Solution

Due to biomagnification,if the concentration of $DDT$ in water is $0.003 \, ppm$,what will be the concentration of $DDT$ in zooplankton,small fish,large fish,and fish-eating birds,respectively?

Medium
View Solution

Which is the most widely used insecticide in the world?

Easy
View Solution

What problem arises if irrigation is provided for a long time in fields?

MediumAIPMT 2005
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo