NCERT/Class 12/Biology/Environmental Issues

Environmental Issues

Class 12 · Biology

31 questions21 easy7 medium3 hard

Sample Questions

Q1.Particulate matter (PM) in air causes:

  • ABeneficial effects
  • BRespiratory and cardiovascular problems
  • CIncreased visibility
  • DPlant growth enhancement

Q2.The ozone hole occurs over:

  • AEquatorial regions
  • BAntarctica
  • CTropics
  • DDesert regions

Q3.Ocean acidification results from:

  • AIncreased salinity
  • BCO₂ dissolving forming carbonic acid
  • CAcid rain
  • DOil spills

Q4.The Montreal Protocol aims to:

  • AReduce ozone-depleting substances
  • BIncrease ozone production
  • CNo effect on ozone
  • DPromote CFCs

Q5.Acid rain harms:

  • AAquatic ecosystems only
  • BTerrestrial and aquatic systems
  • COnly soil
  • DBuildings and infrastructure only

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Acid rainAir pollutionBiodegradable wasteGlobal warmingOzone depletionSoil degradationSolid wasteSustainable developmentWater pollution

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