Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Bureau of Energy Efficiency was founded in which of the following year?
[A] 2001
[B] 2002
[C] 2003
[D] 2004
Show Answer
Correct Answer: B [2002]
Notes:
The Bureau of Energy Efficiency is an agency of the Government of India, under the Ministry of Power. It was created to implement the various provisions of the nation’s 2001 Energy Conservation Act. It was founded in March 2002.
42. Which of the following is the primary greenhouse gas emitted through human activities?
[A] Methane
[B] Carbon dioxide
[C] Carbon Monoxide
[D] Water vapour
Show Answer
Correct Answer: B [Carbon dioxide]
Notes:
Carbon dioxide is naturally present in the atmosphere as a part of the Earth’s carbon cycle. It is also the primary greenhouse gas which is emitted through human activities.
43. Which of the following is/are the chief sources of Brown Carbon?
1) Biomass burning
2) smoke from agricultural fires
3) Vehicular Smoke
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 1 & 3
[C] Only 2 & 3
[D] Only 3
Show Answer
Correct Answer: A [Only 1 & 2]
Notes:
Brown carbon is brown smoke which is released by the combustion of organic matter along with black carbon. Some of the sources of Brown carbon are:
1) Biomass burning or domestic burning of wood.
2) smoke from agricultural fires
44. Which of the following is called the place of origin an earthquake?
[A] Focus
[B] Hypercenter
[C] Epicenter
[D] None of the above
Show Answer
Correct Answer: A [Focus]
Notes:
The Focus of an earthquake, which is also called as a Hypocenter is the point of the origin of an earthquake whereas the epicenter is the point just exactly above the focus.
45. Which of the following statements are correct regarding Environment Impact Assessment?
1. Screening is done based on type and location of development only.
2. The state of ecosystem as it exists prior to the project and its potential effects is known as Baseline Data.
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: B [Only 2]
Notes:
The screening criteria is based upon the scale of investment, type of development and location of development. The state of ecosystem as it exists prior to the project and its potential effects is known as Baseline Data.
46. Littoral and Swamp Forests can be seen in–
[A] Howrah
[B] Kolkata
[C] South 24 Pargana
[D] Hooghly
Show Answer
Correct Answer: C [South 24 Pargana ]
Notes:
Littoral and Swamp Forests also known as
The Mangrove Forests is found in Ganga-Brahmaputra delta (Sundarbans) i.e. in the districts of South 24
Parganas and Southern region of North 24 Parganas.
47. The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for ____:
[A] Particles per mole
[B] Purity per microgram
[C] Pollutant prevent measures
[D] Parts per million
Show Answer
Correct Answer: D [Parts per million]
Notes:
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
48. Cellulose fibers are organic pollutant mainly produced by which Industry/ Industries?
I. Mining Industry
II. Soap and detergent Industry
III. Paper and Pulp Industry
[A] Only I
[B] Only II
[C] Only III
[D] Both II and III
Show Answer
Correct Answer: C [Only III]
Notes:
Cellulose for industrial use is mainly obtained from wood pulp and cotton. Cellulose is the major constituent of paper, paperboard, and card stock. It is also the main ingredient of textiles made from cotton, linen, and other plant fibres. It can be turned into rayon, an important fiber that has been used for textiles since the beginning of the 20th century.
49. The resources which are obtained from bio sphere and have life are ____:
[A] Potential resources
[B] Biotic resources
[C] Abiotic resources
[D] Renewable resources
Show Answer
Correct Answer: B [Biotic resources]
Notes:
Biotic resources describe living or once living resources of a community; for example organisms, such as plants and animals wood, alkaloids, latex obtained from plant are also biotic resources. They are obtained from the biosphere and have life. The resources which are composed of non-living things are called Abiotic Resources. For example, water, minerals, metals, wind, solar energy etc.
50. The accumulation of nondegradable chemicals progressively at each trophic level is called ____:
[A] Biological magnification
[B] Residue magnification
[C] Chemical magnification
[D] None of the above
Show Answer
Correct Answer: A [Biological magnification]
Notes:
Biological magnification is the increase in concentration of certain fat-soluble chemicals in successively higher trophic levels of a food chain or food web. In other words, as chemical compounds move up through the various links of a food chain by being consumed by different organisms, the toxic effect of these compounds is magnified. It plays a devastating role in certain types of pollution.
