Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
1. Which of the following is not a feature of the Eutrophic lakes?
[A] They are generally occupied by blooms
[B] They have high plant nutrient flux
[C] They have low primary productivity
[D] They are dominated by blue green algae
Show Answer
Correct Answer: C [ They have low primary productivity ]
Notes:
C is incorrect because its high primary productivity which makes occupied by blooms.
2. Which among the following National Parks / Wild Life sanctuaries of Tamil Nadu is called as Top Slip?
[A] Aanamalai National Park
[B] Mudumalai Wildlife Sanctuary
[C] Guindy National Park
[D] Palani Hills National Park
Show Answer
Correct Answer: A [Aanamalai National Park]
Notes:
Aanaimalai Tiger Reserve was also known as Indira Gandhi Wildlife Sanctuary and National Park is located in the state of Tamil Nadu. The practice of sliding timber logs down the hills from a place located in the northeast corner of the park is named as “Topslip”. It is a famous tourist attraction.
3. Where is the secretariat office of Birdlife International?
[A] Geneva
[B] Cambridge
[C] Suva, Fiji
[D] Mumbai, India
Show Answer
Correct Answer: B [ Cambridge ]
Notes:
The secretariat office of BirdLife International is located in Cambridge, UK. BirdLife International is a global partnership of environmental NGOs and national conservation organizations. BirdLife International was formed on June 20, 1922. Their chairman is Braulio Ferreira de Souza Dias. Their priorities include: Preventing the extinction of bird species; Identifying and safeguarding important sites for birds; Maintaining and restoring key bird habitats; Empowering conservationists worldwide.
4. At which of the following places First Global Conference on depletion of Ozone layer was held?
[A] Geneva
[B] Vienna
[C] London
[D] Frankfurt
Show Answer
Correct Answer: B [Vienna]
Notes:
The Convention for the Protection of the Ozone Layer was adopted in the conference at Vienna on 22 March 1985. The Montreal Protocol on Substances that Deplete the Ozone Layer was an international treaty which was organized in 1987.
5. Which among the following is the main source of “Synthetic Fuel”?
[A] Plastic
[B] Biomass
[C] Coal
[D] Municipal Waste
Show Answer
Correct Answer: C [Coal]
Notes:
Synthetic fuel is a liquid or gaseous fuel (which is obtained from a mixture of carbon monoxide and hydrogen) which was formed by coal or biomass or by reforming of natural gas. Some of the conversion methods are Fischer–Tropsch conversion, methanol to gasoline conversion, direct coal liquefaction.
6. “Fish meal” is widely used as which among the following?
[A] Cost effective Food
[B] Poultry Feed Additive
[C] Organic Fertilizer
[D] Bird food
Show Answer
Correct Answer: C [Organic Fertilizer]
Notes:
Fish meal is made from fish that are not suitable for human consumption. It is used to feed farm animals. It is also a nutrients rich organic fertilizer with a NPK ratio of 10-2-2.
7. 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.
8. The rate of water erosion can increase if there is :
[A] a decrease in precipitation
[B] an increase in rock particle size
[C] an increase in vegetative cover
[D] an increase in livestock grazing
Show Answer
Correct Answer: D [ an increase in livestock grazing]
Notes:
Negative effects of grazing (or more usually over-grazing) include increased soil erosion, adverse water quality impacts from increased runoff and loss of biodiversity.
9. The highest Biological Oxygen Demand (BOD) can be expected in __?
[A] A running river
[B] A running polluted river
[C] Treated Municipal waste water
[D] Untreated Municipal waste water
Show Answer
Correct Answer: D [ Untreated Municipal waste water]
Notes:
BOD is amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period, for running rivers, it would be minimum and for Untreated Municipal waste water it would be maximum.
10. Which of the following processes is known to be the rapidly growing mass of phytoplankton covering the surface water of a lake or pond?
[A] Eutrophication
[B] Water bloom
[C] Water pollution
[D] None of the above
Show Answer
Correct Answer: A [Eutrophication]
Notes:
Eutrophication is a process in which excessive richness of nutrients in a lake or other body of water, frequently due to run-off from the land, which causes a dense growth of plant life.
