Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
1. Which among the following plants is used as Green Manure?
[A] Wheat
[B] Sunhemp
[C] Cotton
[D] Rice
Show Answer
Correct Answer: B [Sunhemp]
Notes:
Sunhemp is used as Green Manure. Sunhemp as a green manure is needed be ploughed in 2 months after sowing when the plants begin to flower as it decomposes more rapidly and it will have a positive N balance at this stage.
2. Which among the following is called” mother of pearl”?
[A] Ammolite
[B] Nacre
[C] Tusk
[D] Seashell
Show Answer
Correct Answer: B [Nacre]
Notes:
Nacre also known as mother of pearl, is an organic-inorganic composite material produced by some mollusks as an inner shell layer; it is also what makes up the outer coating of pearls. It is strong, resilient, and iridescent.
3. Bhitarkanika National Park is located in which among the following states?
[A] Andhra Pradesh
[B] West Bengal
[C] Odisha
[D] Karnataka
Show Answer
Correct Answer: C [Odisha]
Notes:
Bhitarkanika National Park is located in Kendrapara district of Odisha. In 2002, it obtained the status of a Ramsar site. It is home to the king cobra, saltwater crocodile, Indian python, darters and many other flora and fauna.
4. Biligiriranga Temple Wildlife Sanctuary is located in which state ?
[A] Tamil Nadu
[B] Karnataka
[C] West Bengal
[D] Kerala
Show Answer
Correct Answer: B [Karnataka]
Notes:
Biligiriranganatha Swamy Temple Wildlife Sanctuary is a protected reserve under the Wildlife Protection Act of 1972. In 2011, the Government of Karnataka declared the site a tiger reserve. The name Biligiri came from the white rock face that constitutes the major hill.
5. Hoollongapar Gibbon Sanctuary which is home to only ape in India, the hoolock gibbon is lcoated in which of the following state?
[A] West Bengal
[B] Nagaland
[C] Assam
[D] Karnataka
Show Answer
Correct Answer: C [Assam]
Notes:
The Hoollongapar Gibbon Sanctuary is located in the state of Assam. It is an isolated protected area of evergreen forest. It was officially constituted in 1997. It is home to only ape in India, the hoolock gibbon.
6. The highest per capita emitter of Carbon dioxide in the world is :
[A] USA
[B] China
[C] Qatar
[D] Saudi Arabia
Show Answer
Correct Answer: C [Qatar]
Notes:
The world’s largest CO2 emitter country is China and per capita emission is highest in Qatar with 49 tonnes per person. Qatar is followed by Tobago, Kuwait, UAE.
7. Which of the following Environmentalists first gave the concept of Biodiversity ‘hotspots’ ?
[A] Gaylord Nelson
[B] Norman Myers
[C] John Muir
[D] Julia “Butterfly” Hill
Show Answer
Correct Answer: B [Norman Myers ]
Notes:
In the year 1988, Norman Myers (British ecologist) published a paper mentioning 10 tropical forest “hotspots.” They were characterized by exceptional levels of plant endemism as well as serious levels of habitat loss.
8. Which of the following statements scientifically explains the fact that a rough sea can be calmed by pouring oil on its surface?
[A] The oil increases the surface tension of water
[B] The surface tension of the oil film absorbs energy of waves
[C] The winds creating waves are blocked by the oil film
[D] None of the reasons mentioned in A, B and C
Show Answer
Correct Answer: B [ The surface tension of the oil film absorbs energy of waves]
Notes:
When the waves go underneath the film, the surface tension of the oil film makes them to lose some of the energy.
9. Which weed is found useful to check water pollution caused by industrial affluents ?
[A] Water hyacinth
[B] Elephant grass
[C] Parthenium
[D] All of the above
Show Answer
Correct Answer: A [Water hyacinth]
Notes:
Water hyacinth as indicator of heavy metal pollution in the tropics. The water hyacinth (Eichhornia crassipes) is a common aquatic plant in many tropical countries. Its ability absorb nutrients and other elements from thewater has made it possible to use it for water purification purposes.
10. Which of the following is NOT a primary green house gas in the earth’s atmosphere?
[A] Ozone
[B] Hydrogen
[C] Methane
[D] Nitrous Oxide
Show Answer
Correct Answer: B [Hydrogen]
Notes:
Many green house gases, including water vapor (the most important), ozone, carbon dioxide, methane, and nitrous oxide, are naturally present in the atmosphere. Other GHGs are synthetic chemicals that are emitted only as a result of human activity.
