Which of the following describes the use of lichens in relation to pollution?
- ALichens are not related to pollution.
- BThey are biological indicators of pollution.
- CThey treat polluted water.
- DThey increase pollution.
Explore More
Similar Questions
Match the following columns.
Column $I$ Column $II$ $(A)$ $DJ$ Ivanowsky $(i)$ Viroids $(B)$ $MW$ Beijerinck $(ii)$ Crystallised virus $(C)$ $WM$ Stanley $(iii)$ Contagium vivum fluidum $(D)$ $TO$ Diener $(iv)$ Mosaic disease of tobacco
| Column $I$ | Column $II$ |
|---|---|
| $(A)$ $DJ$ Ivanowsky | $(i)$ Viroids |
| $(B)$ $MW$ Beijerinck | $(ii)$ Crystallised virus |
| $(C)$ $WM$ Stanley | $(iii)$ Contagium vivum fluidum |
| $(D)$ $TO$ Diener | $(iv)$ Mosaic disease of tobacco |
Medium
View SolutionAssertion $A$: Viroids and viruses can pass through bacteria-proof filters.
Reason $R$: Bacteria are retained by bacteria-proof filters.
Which option is correct for Assertion $A$ and Reason $R$?
Reason $R$: Bacteria are retained by bacteria-proof filters.
Which option is correct for Assertion $A$ and Reason $R$?
Easy
View SolutionWhich infectious agents are smaller than viruses?
Easy
View SolutionWhat does the given figure represent?
Medium
View SolutionThe symbiotic association between algae and fungi is known as -
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