The top 30 Environmental Studies MCQs for the OTET exam are tailored to help aspiring teachers grasp essential environmental concepts and issues. These questions delve into topics such as biodiversity, conservation, pollution, climate change, and sustainable development. By focusing on both theoretical knowledge and practical applications, this set of MCQs aims to equip candidates with a comprehensive understanding of environmental science, crucial for educating future generations. The carefully curated questions ensure that candidates are well-prepared to tackle the environmental studies section of the OTET exam with confidence and proficiency.
Top 30 Environmental Studies MCQS For OTET Exam
- Environmental studies is defined as the branch that deals with the:
- A) Design, study, and discovery of new materials.
- B) Study of humanities, social, biological, and physical sciences.
- C) Incorporation of information and physical sciences.
- D) Approach about the natural world and the impact of humans on its integrity.
- Answer: D) Approach about the natural world and the impact of humans on its integrity.
- Which of the following statements about the Zoological Survey of India (ZSI) is true?
- A) It was established in 1890 at the Royal Botanical Gardens, Calcutta.
- B) It is the first crocodile conservation breeding center in Asia.
- C) It was established in 1916 to do an organized survey of fauna in India.
- D) It was established in 1982 for research in Wildlife Management.
- Answer: C) It was established in 1916 to do an organized survey of fauna in India.
- Which layer of the atmosphere contains the ozone responsible for the absorption of UV light?
- A) Stratosphere
- B) Troposphere
- C) Mesosphere
- D) None of these
- Answer: A) Stratosphere
- The estimated percentage of the forest land that ideally India should have is:
- A) 50%
- B) 15%
- C) 33%
- D) 44%
- Answer: C) 33%
- Which two countries of the world constitute about 57% of the large dams?
- A) India and China
- B) India and Brazil
- C) China and Brazil
- D) India and Japan
- Answer: A) India and China
- The essential non-metallic minerals are:
- A) Granite, marble, limestone
- B) Gold, silver, platinum
- C) Iron, aluminum, zinc, copper
- D) Coal, clay, cement, silica
- Answer: D) Coal, clay, cement, silica
- Integrated Crop Management is defined as a process to:
- A) Use traditional methods for growing crops.
- B) Use alternatives to inorganic fertilizers and pesticides.
- C) Both (A) and (B)
- D) None of the above
- Answer: C) Both (A) and (B)
- Which three edible plant species constitute about 60% of the world’s food energy intake?
- A) Wheat, Barley, Oat
- B) Wheat, Rice, Maize
- C) Wheat, Barley, Maize
- D) None of these
- Answer: B) Wheat, Rice, Maize
- Which of the following is not a measure of sustainable water management?
- A) Preventing leakage from dams and canals
- B) Reducing the rate of surface run-off water.
- C) Preventing loss in municipal pipes.
- D) Building small reservoirs in place of a few mega projects.
- Answer: B) Reducing the rate of surface run-off water.
- Which element is considered the largest source of the world’s commercial energy consumption?
- A) Coal
- B) Oil
- C) Natural gas
- D) Nuclear
- Answer: B) Oil
- What are the two forms of alcohol included in biofuels?
- A) Ethanol and methanol
- B) Ethanol and propanol
- C) Methanol and propanol
- D) None of the above
- Answer: A) Ethanol and methanol
- What is the world’s largest potential source of biomass energy?
- A) Animal waste
- B) Industrial waste
- C) Fibrous waste of the paper industry
- D) Fibrous waste of the sugar industry
- Answer: D) Fibrous waste of the sugar industry
- The functional aspects of the ecosystem are:
- A) Energy cycles
- B) Nutrient cycles
- C) Food chains
- D) All of the above
- Answer: D) All of the above
- Which of the following is also called Detrivores?
- A) Herbivores
- B) Decomposers
- C) Carnivores
- D) None of the above
- Answer: B) Decomposers
- What are ‘keystone’ species in an ecosystem?
- A) The species whose elimination can seriously affect the ecosystem.
- B) The species whose elimination can benefit the ecosystem.
- C) The species whose elimination would not affect the ecosystem.
- D) None of the above
- Answer: A) The species whose elimination can seriously affect the ecosystem.
- What is the correct order of the 3R principle?
- A) Recycle, Reuse, Reduce
- B) Reuse, Reduce, Recycle
- C) Reduce, Reuse, Recycle
- D) None of the above
- Answer: C) Reduce, Reuse, Recycle
- In which year was the amendment of the Forest Conservation Act enacted?
- A) 1976
- B) 1988
- C) 1980
- D) 1971
- Answer: B) 1988
- Hepatitis A is what kind of disease?
- A) Food contamination
- B) Water-borne disease
- C) Air-borne disease
- D) Both (A) and (B)
- Answer: D) Both (A) and (B)
- Which category is the worst sufferer of environmental destruction?
- A) Moderate class
- B) Rich
- C) Poor
- D) All of the above
- Answer: C) Poor
- Name the most frequent and naturally occurring disaster.
- A) Earthquake
- B) Flood
- C) Tsunami
- D) None of the above
- Answer: B) Flood
- How many biodiversity hotspots exist in the world?
- A) 34
- B) 30
- C) 35
- D) 36
- Answer: D) 36
- What drug is associated with the plant source of coffee or tea?
- A) Camphor
- B) Opium Poppy
- C) Caffeine
- D) Thorn Apple
- Answer: C) Caffeine
- When is World Environment Day celebrated?
- A) June 5th
- B) June 6th
- C) June 8th
- D) June 10th
- Answer: A) June 5th
- What factors cause eutrophication?
- A) Increment in plant nutrients
- B) Using fertilizers excessively
- C) Both (A) and (B)
- D) None of the above
- Answer: C) Both (A) and (B)
- What would happen to Earth in the absence of ants?
- A) Destruction of life
- B) Little impact
- C) Reduction in termites
- D) No effect
- Answer: A) Destruction of life
- Which activity can lower the water table?
- A) Overgrazing
- B) Human population growth
- C) Soil erosion
- D) Over extraction of groundwater
- Answer: D) Over extraction of groundwater
- Jowar and Bajra grow in regions having:
- A) High amount of moisture
- B) Low amount of moisture
- C) No moisture
- D) None of the above
- Answer: B) Low amount of moisture
- Why is the sky blue?
- A) Water vapor is present
- B) Sunlight gets scattered due to air molecules
- C) Blue light gets absorbed by the air
- D) Blue light is emitted through the atmosphere
- Answer: B) Sunlight gets scattered due to air molecules
- What is the cause of soil pollution?
- A) Acid rain
- B) Ozone
- C) Aerosol
- D) None of the above
- Answer: A) Acid rain
- Why are radiations harmful?
- A) Radiations lead to skin cancer
- B) Radiations cause anemia
- C) Radiations change body tissues
- D) Radiations are not stable
- Answer: A) Radiations lead to skin cancer
