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Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 10

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Free Download as PDF Environmental Studies Quiz Questions and Answers for Competitive Exams or solved MCQs with answers. These quiz objective questions are helpful for competitive exams SSC, UPSC, IAS, IPS, CDS, NDA, Railways or RRB, psc exams of Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Gujarat, Haryana, Himachal Pradesh, Jammu & Kashmir, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Orissa, Punjab, Rajasthan, Sikkim, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal, Chhattisgarh, Uttarakhand, Jharkhand, Telangana etc.
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(1) Depending upon the amount of net primary productivity the various ecosystems can be arranged in a decreasing sequence of yield.
(1) Tropical seasonal forest –Tropical rain forest – Temperate Grassland – Woodland and Shrubland.
(2) Tropical seasonal forest –Tropical rain forest – Woodland and Shrubland– Temperate Grassland
(3) Tropical rain forest – Temperate Grassland – Woodland and Shrubland – Tropical seasonal forest.
(4) Tropical rain forest – Tropical seasonal forest – Woodland and Shrubland–Temperate Grassland.
Answer: Tropical rain forest – Tropical seasonal forest – Woodland and Shrubland–Temperate Grassland.
(2) Raunkiaer’s normal biological spectrum for phanerogamic flora of the world exhibits one of the following sequence of occurrence (%) of different life forms.
(1) Phanerophytes,Hemicryptophytes, Therophytes, Cryptophytes, Chaemophytes.
(2) Phanerophytes,Hemicryptophytes, Therophytes,Chaemophytes, Cryptophytes.
(3) Phanerophytes,Hemicryptophytes,Cryptophytes,Chaemophytes Therophytes.
(4) Phanerophytes, Chaemophytes,Hemicryptophytes, Cryptophytes, Therophytes.
Answer: Phanerophytes,Hemicryptophytes, Therophytes,Chaemophytes, Cryptophytes

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(3) One of the following categories of earthworms is most suitable for wasteland reclamation.
(1) Epigeic
(2) Anecic
(3) Endogeic
(4) None of the above
Answer: Epigeic
(4) How many mega-bio-diverse countries have been identified in the world ?
(1) 2
(2) 12
(3) 17
(4) 35
Answer: 17
(5) Which one of the following is an Ex-situ method of biodiversity conservation ?
(1) Seed storage
(2) DNA Bank
(3) Tissue culture
(4) All the above
Answer: All the above
(6) Which one of the following is a methyl isocyanate (MIC) based pesticide ?
(1) Sevin (Carbaryl)
(2) Temix (Aldicarb)
(3) Furadon (Carbofuran)
(4) All the above
Answer: All the above
(7) The sequence of fossil fuels in the order of higher to lower heating value is as follows :
(1) Coal, Petroleum, Natural Gas,Hydrogen.
(2) Hydrogen,Natural Gas,Petroleum, Coal.
(3) Hydrogen, Coal, Natural Gas,Petroleum.
(4) Natural Gas, Petroleum, Coal,Hydrogen.
Answer: Hydrogen,Natural Gas, Petroleum, Coal.
(8) Natural ore of radioactive materials does not contain which one of the following isotope ?
(1) U235
(2) Pu239
(3) U238
(4) Th232
Answer: Pu239
(9) The process of splitting bigger hydro-carbon into smaller hydrocarbon molecules is called
(1) Pyrolysis
(2) Thermal decomposition
(3) Cracking
(4) Combustion
Answer: Cracking
(10) Which one of the following is a complex in organic fertilizer ?
(1) Urea
(2) Potash
(3) R2 value
(4) NPK
Answer: NPK
(11) Average composition of biodegradable waste in Municipal Solid Waste(MSW) of India is
(1) 30 – 35%
(2) 40 – 45%
(3) 55 – 65%
(4) 60 – 70%
Answer: 40 – 45%
(12) The treatment method recommended for the human anatomical waste generated from hospitals is
(1) Chemical disinfection
(2) Autoclaving
(3) Incineration
(4) All the above
Answer: Incineration
(13) Which of the following is true when frequency of occurrence of risk is remote but possible ?
(1) Risk is acceptable
(2) Risk reduction measures should be implemented.
(3) Risk is unacceptable.
(4) Both (A) and (B) are true.
Answer: Risk is acceptable.
(14) An earthquake measuring over 8 on Richter Scale is rated as
(1) Destructive
(2) Major
(3) Great
(4) Damaging
Answer: Great
(15) In a false – color set, human visual perception is limited to how many independent coordinates ?
(1) Three
(2) Four
(3) One
(4) Five
Answer: three

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