Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Which of the following statements are correct regarding Stockholm Conference, 1972?
1. It was the first step towards which put forward environmental concerns on the global agenda.
2. The Stockholm Declaration contained principles and an Action Plan containing recommendations for environmental policy.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Stockholm Conference, 1972 was the first step towards which put forward environmental concerns on the global agenda. The Stockholm Declaration contained principles and an Action Plan containing recommendations for environmental policy.
42. Where is Lingambudhi Lake located?
[A] Bengaluru
[B] Hubbali
[C] Mysuru
[D] Shivamogga
Show Answer
Correct Answer: C [Mysuru]
Notes:
Lingambudhi Lake is situated in Mysuru city, Karnataka. Mysuru is known for its lakes and parks, and Lingambudhi Lake is a well-known water body in this region. It serves as an important ecological and recreational area within the city limits.
43. In how many states do Central Government run the Namami Gange mission?
[A] 2
[B] 3
[C] 4
[D] 5
Show Answer
Correct Answer: D [5]
Notes:
Namami Gange mission is run by the Central
Government in five states namely
Uttarakhand, Uttar Pradesh, Jharkhand,
Bihar and West Bengal. It is managed by West Bengal Forest Department for
sustaining the biodiversity of the Ganga river ecosystem along with its
purification.
44. The sum of genes in a population is called ____:
[A] Phenotype
[B] Karyotype
[C] Genotype
[D] Gene pool
Show Answer
Correct Answer: D [Gene pool]
Notes:
Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
45. Which among the following helps in monitoring air pollution?
[A] Lichen
[B] Bacteria
[C] Algae
[D] Fungi
Show Answer
Correct Answer: A [Lichen]
Notes:
Lichens are actually two types of organisms living together, a fungus and an alga. The fungus makes the body that protects the alga and the alga provides the food for the fungus. Lichens can be used as air pollution indicators, especially of the concentration of Sulphur dioxide in the atmosphere.
46. What is the most abundant organic compound in the terrestrial environment?
[A] Sucrose
[B] Lactose
[C] Cellulose
[D] Fructose
Show Answer
Correct Answer: C [Cellulose]
Notes:
The most abundant organic compound in the terrestrial environment is cellulose. A type of carbohydrate, cellulose contains chains of glucose rings. Providing strength and rigidity, cellulose forms the cell walls of plants. Cellulose is the primary constituent of wood, making this organic compound the most abundant one on the surface of the Earth.
47. The primary producer in an ecosystem are ____:
[A] Women
[B] Men
[C] Plants
[D] Bacteria
Show Answer
Correct Answer: C [Plants]
Notes:
Primary producers are the organisms in an ecosystem that produce biomass from inorganic compounds (autotrophs). In almost all cases, these are photosynthetically active organisms (plants, cyanobacteria and a number of other unicellular organism.
48. Which of the following is a biotic component of environment?
[A] Energy
[B] Radiation
[C] Water
[D] Green plant
Show Answer
Correct Answer: D [Green plant]
Notes:
Biotic components are the living things that shape an ecosystem. Examples of biotic components include animals, plants, fungi, and bacteria. Abiotic components are non-living components that influence an ecosystem. Examples of abiotic factors are temperature, air currents, and minerals.
49. Absence of fish along a river indicates _____:
[A] Zone of active decomposition
[B] Zone of degradation
[C] Zone of recovery
[D] All zones of pollution
Show Answer
Correct Answer: B [Zone of degradation]
Notes:
Absence of fish along a river indicates zone of degradation. This zone is found for a certain length just below the point where sewage is discharged into the river-stream. This zone is characterised by water becoming dark and turbine with formation of sludge deposits at the bottom. D.O is reduced to about 40% of the saturated value.
50. To which reef system does Glover’s Reef belong?
[A] The Belize Barrier Reef Reserve System
[B] The Great Barrier Reef
[C] The Red Sea Coral Reef
[D] The Coral Triangle
Show Answer
Correct Answer: A [The Belize Barrier Reef Reserve System]
Notes:
Glover’s Reef is a part of The Belize Barrier Reef Reserve System, a UNESCO World Heritage Site since 1996. This is the world’s second largest reef system, extending 300 km along the coast of Belize. It’s a host to seven protected areas inclusive of three atolls: Turneffe, Lighthouse, and Glover’s Reef. The complex supports 1,400 known species, among them 17 endangered ones such as the American crocodile, manatee, and different sea turtles. The system, notable for its pristine condition, was deemed by Charles Darwin as the “most remarkable reef in the West Indies”.
