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Correct (11)
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Test Attempted : Environmental Issues : Biology (Class 12th) Revision Test | MCQs For NEET

Total Questions : 25

Attempted : 25

Skipped : 0

Correct Responses : 11

Incorrect Responses : 14

Marks Obtained

11 44%

Result Generated: 23-May-2022 07:15:31   (Result Id : 16014   Session: 15859  User : Ram Meena )
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Print this

Q.1. Which chemical substance affects the Ozone Layer?

  1. Chlorofluorocarbon
  2. Chlorine
  3. Hexafluorocarbon
  4. Molecular Carbon

Your Response : (a) Chlorofluorocarbon
Correct Response : a) Chlorofluorocarbon
Marks : 1

Answer: (a) Chlorofluorocarbon
Explanation: Chlorofluorocarbon affects the Ozone Layer.

Q.2. In Ozone Degradation which element acts as catalyst?

  1. Chlorine
  2. Flurine
  3. Oxygen
  4. Potassium

Your Response : (b) Flurine
Correct Response : a) Chlorine
Marks : 0

Answer: (a) Chlorine
Explanation: Chlorine acts as catalyst in ozone degradation.

Q.3. Ozone Layer is found in

  1. Stratosphere
  2. Lithosphere
  3. Troposphere
  4. Hemisphere

Your Response : (a) Stratosphere
Correct Response : a) Stratosphere
Marks : 1

Answer: (a) Stratosphere
Explanation: Ozone Layer is found in Stratosphere

Q.4. Acid Rain comes under which type of pollution?

  1. Water pollution
  2. Air pollution
  3. Soil pollution
  4. Sound Pollution

Your Response : (c) Soil pollution
Correct Response : c) Soil pollution
Marks : 1

Answer: (c) Soil pollution
Explanation: Acid Rain comes under Soil pollution.

Q.5. Environment (Protection) Act came into force in?

  1. 1986
  2. 1989
  3. 1992
  4. 1993

Your Response : (d) 1993
Correct Response : c) 1992
Marks : 0

Answer: (c) 1992
Explanation: 1992

Q.6. Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with

  1. DDT
  2. Ammonia
  3. CO2
  4. Water

Your Response : (b) Ammonia
Correct Response : c) CO2
Marks : 0

Answer: (c) CO2
Explanation: Bhopal gas tragedy of 1884 took place because methyl isocyanate reacted with CO2

Q.7. Chlorofluoro carbon are responsible for

  1. Acid rain
  2. Ozone layer depletion
  3. Global warming
  4. Thermal inversion

Your Response : (c) Global warming
Correct Response : d) Thermal inversion
Marks : 0

Answer: (d) Thermal inversion
Explanation: Chlorofluoro carbon are responsible for Thermal inversion

Q.8. Fluoride pollution mainly affect

  1. Teeth
  2. Kidney
  3. Brain
  4. Heart

Your Response : (a) Teeth
Correct Response : a) Teeth
Marks : 1

Answer: (a) Teeth
Explanation: Fluoride pollution mainly affect Teeth

Q.9. Nutrient enrichment of water bodies causes

  1. Stratification
  2. Eutrophication
  3. Succession
  4. None of these

Your Response : (a) Stratification
Correct Response : b) Eutrophication
Marks : 0

Answer: (b) Eutrophication
Explanation: Nutrient enrichment of water bodies causes Eutrophication

Q.10. Increased skin cancer and high mutation rate are due to

  1. Acid Rain
  2. Ozone Depletion
  3. CO2 Pollution
  4. CO Pollution

Your Response : (b) Ozone Depletion
Correct Response : b) Ozone Depletion
Marks : 1

Answer: (b) Ozone Depletion
Explanation: Increased skin cancer and high mutation rate are due to Ozone Depletion

Q.11. Natural air pollutant are

  1. Pollen Grains
  2. Gases of Volcanic Eruption
  3. Aerosol
  4. Fluorides

Your Response : (c) Aerosol
Correct Response : b) Gases of Volcanic Eruption
Marks : 0

Answer: (b) Gases of Volcanic Eruption
Explanation: Natural air pollutant are Gases of Volcanic Eruption

Q.12. Which one of the following is not a greenhouse gas?

  1. Methane
  2. CO2
  3. Chlorofluoro carbon
  4. Hydrogen

Your Response : (d) Hydrogen
Correct Response : d) Hydrogen
Marks : 1

Answer: (d) Hydrogen
Explanation: Hydrogen is not a greenhouse gas.

Q.13. Minimata disease is caused by

  1. ByChromium
  2. By Cadmium
  3. By Methyl mercury
  4. By Radioactive elements

Your Response : (c) By Methyl mercury
Correct Response : c) By Methyl mercury
Marks : 1

Answer: (c) By Methyl mercury
Explanation: Minimata disease is caused by Methyl mercury.

Q.14. Bluebaby syndrome results from

  1. Excess of TDS
  2. Excess of DO
  3. Excess of chloride
  4. Methaemoglobin

Your Response : (d) Methaemoglobin
Correct Response : d) Methaemoglobin
Marks : 1

Answer: (d) Methaemoglobin
Explanation: Bluebaby syndrome results from Methaemoglobin

Q.15. A mutagenic pollutant is:

  1. Organophosphate
  2. Resines
  3. Hydrocarbons
  4. Nitrogen oxides

Your Response : (d) Nitrogen oxides
Correct Response : c) Hydrocarbons
Marks : 0

Answer: (c) Hydrocarbons
Explanation: A mutagenic pollutant is Hydrocarbons

Q.16. Rain is called acid rain, its pH is below:

  1. 7
  2. 6.5
  3. 6
  4. 5.6

Your Response : (a) 7
Correct Response : d) 5.6
Marks : 0

Answer: (d) 5.6
Explanation: 5.6

Q.17. Common indicator organism of water pollution is

  1. Lemna pancicostata
  2. Eichhomia crassipes
  3. Escherichia coli
  4. Entamoeba histolytica

Your Response : (d) Entamoeba histolytica
Correct Response : c) Escherichia coli
Marks : 0

Answer: (c) Escherichia coli
Explanation: Common indicator organism of water pollution is Escherichia coli

Q.18. Pollution of SO2 destroys

  1. Lichen
  2. Fungi
  3. Algae
  4. Fish

Your Response : (b) Fungi
Correct Response : a) Lichen
Marks : 0

Answer: (a) Lichen
Explanation: Pollution of SO2 destroys SO2

Q.19. Act formulated in 1996 was

  1. Insecticide Act
  2. Air (Prevention and Control of Pollution) Act
  3. Water (Prevention and control of Pollution) Act
  4. Environment protection Act

Your Response : (c) Water (Prevention and control of Pollution) Act
Correct Response : d) Environment protection Act
Marks : 0

Answer: (d) Environment protection Act
Explanation: Environment protection Act

Q.20. Permissible noise levels in a residential area at night time is

  1. 35 dB
  2. 40 dB
  3. 45 dB
  4. 50 dB

Your Response : (b) 40 dB
Correct Response : c) 45 dB
Marks : 0

Answer: (c) 45 dB

Q.21. The natural aging of the lake is called

  1. Biomagnification
  2. Eutrophication
  3. BOD
  4. None of the above

Your Response : (a) Biomagnification
Correct Response : b) Eutrophication
Marks : 0

Answer: (b) Eutrophication
Explanation: The natural aging of the lake is called Eutrophication

Q.22. The agents that bring undesirable changes in the environment arc called

  1. Pollution
  2. Fragments
  3. Pollutants
  4. None of the above

Your Response : (c) Pollutants
Correct Response : c) Pollutants
Marks : 1

Answer: (c) Pollutants
Explanation: These are known as pollutants.

Q.23. Particulate matter can be removed by

  1. Catalytic converter
  2. Converter
  3. Radioactive converter
  4. Electrostatic converter

Your Response : (a) Catalytic converter
Correct Response : d) Electrostatic converter
Marks : 0

Answer: (d) Electrostatic converter
Explanation: Particulate matter can be removed by Electrostatic converter

Q.24. The petrol used in engines filled with catalytic converter should be

  1. Simple petrol
  2. Any type of petrol
  3. Unleaded petrol
  4. None of the above

Your Response : (c) Unleaded petrol
Correct Response : c) Unleaded petrol
Marks : 1

Answer: (c) Unleaded petrol
Explanation: The petrol used in engines filled with catalytic converter should be Unleaded petrol

Q.25. Which metal inactivates a catalytic converter?

  1. Gold
  2. Iron
  3. Silvers
  4. Lead

Your Response : (d) Lead
Correct Response : d) Lead
Marks : 1

Answer: (d) Lead
Explanation: Lead inactivates a catalytic converter.