Environment, Ecology & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App
1. Ozone layer is found in which of the following ?
[A] Troposphere
[B] Stratosphere
[C] Exosphere
[D] Thermosphere
Show Answer
Correct Answer: B [Stratosphere]
Notes:
The ozone layer is a region of Earth’s stratosphere that absorbs most of the Sun’s ultraviolet (UV) radiation that may cause skin cancer. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere. Stratospheric Ozone is not harmful, but its presence on land it is harmful.
2. In which year Project Tiger was launched in India?
[A] 1970
[B] 1973
[C] 1992
[D] 1995
Show Answer
Correct Answer: B [1973]
Notes:
Project Tiger is a tiger conservation programme launched in April 1973 by the Government of India during Prime Minister Indira Gandhi’s tenure. Please note Project Elephant was launched in 1992
3. The Siberian Crane, an endangered migratory bird is a regular visitor of which of the following national park/bird sanctuaries:
[A] Ranganathittu bird sanctuary
[B] Keoladeo national park
[C] Vedanthangal bird sanctuary
[D] Sultanpur bird sanctuary
Show Answer
Correct Answer: B [Keoladeo national park]
Notes:
Keoladeo National Park in Bharatpur, Rajasthan is a famous avifauna sanctuary that plays host to thousands of birds especially during the winter season.
It is also a declared World Heritage Site. The Sanctuary is one of the richest bird areas in the world. It is known for nesting of its resident birds and visiting migratory birds including water birds. The rare Siberian cranes visit the place in winter season.
4. The food chain in which the micro- organism feed by decomposing the organic matter is called-
[A] Detritus food chain
[B] Primary food chain
[C] Secondary food chain
[D] None of the above
Show Answer
Correct Answer: A [Detritus food chain]
Notes:Detritus food chain is on in which micro-organisms feed on the dead organic remains. The organisms feeding on the organic remains are called detrivores or decomposers.
5. Which of the following is true about lakes?
- They are the permanent body of standing water
- Like wetland they have no stratification in water
- They have low productivity as compared to wetlands
Select the correct answer from the codes given below-
[A] 1 and 2 only
[B] 1 and 3 only
[C] 2 and 3 only
[D] 1,2 and 3 only
Show Answer
Correct Answer: B [1 and 3 only]
Notes:
Lakes are the permanent body of standing water having sufficient water and depth. They are formed by various processes like fluvial, geomorphological, artificial etc. There is stratification of water on the basis of temperature which is absent in wetland but as compared to wetlands they have less nutrition
6. Which of the following can be classified under Primary pollutants?
- Plastic
- Sulphur Dioxide
- Nitrogen oxide
- Ozone
Select the correct answer from the codes given below-
[A] 1,2,3,4
[B]1,2 and 3 only
[C] 2,3 and 4 only
[D] 1 and 4 only
Show Answer
Correct Answer: B [
1,2 and 3 only]
Notes:
Primary pollutants are those pollutants that effect the environment in their unmodified form. Example- Carbon monoxide, sulphur dioxide, nitrogen oxide etc.
Secondary pollutants are those pollutants that effect the environment in their modified forms. Example- Troposphere ozone is formed after the reaction of Volatile Organic Compound and nitrogen oxides.
7. Which of the following gas was during Bhopal Gas Tragedy?
[A] Methyle isocynate
[B] Carbon Monoxide
[C] Ethyle Isocynate
[D] Ethyle Ethyle
Show Answer
Correct Answer: A [Methyle isocynate]
Notes:
Bhopal gas tragedy occured on December 3, 1984 in which the poisonous gas methyle isocynate was released in the atmosphere.
8. Which of the following are the benefits of chlorine treatment of water?
- Remove suspended partticles
- Remove hardness of water
- Kill germs
Select the correct answer from the codes given below-
[A] 1,2,3 only
[B] 1 and 3 only
[C] 2 and 3 only
[D] 1 and 2 only
Show Answer
Correct Answer: A [1,2,3 only]
Notes:
Contaminated water is treated with chlorine which removes suspended solid particles in water, remove the hardness of water and kill germs.
9. Which of the following is true about speciation?
- It refers to the formation of new species
- Genetic variations effect it
- Variation in ecosystem effects the speciation
Select the correct answer from the codes given below-
[A] 1,2,3
[B] 1 and 2 only
[C] 2 and 3 only
[D] 1 and 3 only
Show Answer
Correct Answer: A [1,2,3]
Notes:
Speciation is the the formation of new species. It is effected by genetic and ecological variations.
10. Which of the following statements are correct about Taiga Biome?
1) Also known as boreal forest.
2) The dominating vegetation is coniferous evergreen mostly spruce, with some pine and firs.
3) Found in Southern Europe, China area.
Select the correct answer from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 2
[D] Only 3
Show Answer
Correct Answer: A [Only 1 & 2]
Notes:
Taiga Forests are also known as boreal forests. They are predominantly found in the areas of Northern Europe, Asia, and North America. The dominating vegetation is coniferous evergreen mostly spruce, with some pine and firs.
