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Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 1

(1) National Land Reform Policy stresses on
(1) Restoration of ecological balance
(2) Natural regeneration
(3) Tenancy reforms
(4) Watershed approach
Answer: Tenancy reforms
(2) Nalgonda technique of fluoride removal involves the use of
(1) Aluminium salts
(2) Sodium salts
(3) Potassium salts
(4) Magnesium salts
Answer: Aluminium salts

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(3) The Stockholm Convention is a global treaty to protect humans from
(1) toxic gases
(2) hospital acquired infections
(3) persistent organic pollutants
(4) carbon monoxide
Answer: persistent organic pollutants
(4) Which of the following is not a Millennium Development Goal ?
(1) Ensuring environmental sustainability
(2) Eradicating extreme poverty and hunger
(3) Developing global partnership for development
(4) Achieving universal energy security
Answer: Achieving universal energy security
(5) In turbidity analysis, formazin is used
(1) to stabilize the samples
(2) to preserve the samples
(3) to make turbidity standards
(4) to remove colour interferences
Answer: to make turbidity standards
(6) pE values in water range from approximately
(1) – 1 to 14
(2) 1 to 12
(3) 0 to 14
(4) – 12 to 25
Answer: – 12 to 25
(7) Point out the right match concerning the toxic metal and associated adverse impact.
(1) Zn – Brain tissue damage
(2) Ni – Keratosis
(3) Ar – Renal poisoning
(4) Hg – Pulmonary disease
Answer: Zn – Brain tissue damage]
(8) Amount of 8-hydroxyquinoline (M.W. 145.16) required for preparing 1000 ml of 5 ppm solution is
(1) 1.45 mg
(2) 5 mg
(3) 7.25 mg
(4) 14.5 mg
Answer: 5 mg
(9) Radioactive waste management in our country is governed under :
(1) HazardousWaste (Management, Handling and Transboundary Movement
(2) Atomic Energy Act, 1962
(3) Environment (Protection) Act, 1986
(4) BiomedicalWaste (Management & Handling) Rules 1998
Answer: Environment (Protection) Act, 1986
(10) Which of the following parameters is not an indicator of water vapour present in a certain quantity of air ?
(1) Virtual temperature
(2) Potential temperature
(3) Wet bulb temperature
(4) Dew point
Answer: Potential temperature
(11) The background noise level in an area is represented by which of the following noise indices ?
(1) L10
(2) L50
(3) L90
(4) TNI
Answer: L90
(12) Particles which have maximum ability to attract and hold K+, Ca++ and NH4+ ions on their surface are
(1) Clay
(2) Sand
(3) Loam
(4) Loamy sand
Answer: Clay
(13) Compared to CO2, methane has global warming potential of
(1) 5 – 10 times more
(2) 20 – 25 times more
(3) 40 – 45 times more
(4) 60 – 65 times more
Answer: 20 – 25 times more
(14) Laterite soil contains more of
(1) Iron and Aluminium
(2) Magnesium and Boron
(3) Manganese and Silicate
(4) Potassium and Lead
Answer: Iron and Aluminium
(15) Universally accepted method for isolating semivolatile organic compounds from their matrices is
(1) Double infiltration
(2) Solvent extraction
(3) Sedimentation technique
(4) Permeation
Answer: Solvent extraction

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