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 are contained in Fly Ash?
1. Aluminium silicate
2. Silicon dioxide
3. Calcium oxide
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Fly Ash contains Aluminium silicate in large amounts along with Silicon dioxide and Calcium oxide. Fly ash particles are rich in oxide and consist of silica, alumina, oxides of iron, calcium, and magnesium and toxic heavy metals like lead, arsenic, cobalt, and copper.
42. Which of the following statements are correct regarding the Water (Prevention and Control of Pollution) Act, 1974?
1. It empowers State Pollution Control Boards to establish and enforce effluent standards for factories.
2. It empowers SPCB and CPCB to test equipment and to take the sample for the purpose of analysis.
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:
The Water (Prevention and Control of Pollution) Act, 1974 empowers State Pollution Control Boards to establish and enforce effluent standards for factories. It also empowers SPCB and CPCB to test equipment and to take the sample for the purpose of analysis.
43. Every bench of the tribunal constituted under NGT 2010, must consist of which of the following?
[A] At least one expert member and two judicial member.
[B] At least two expert member and one judicial member.
[C] At least one expert member and one judicial member.
[D] At least two expert member and two judicial member.
Show Answer
Correct Answer: C [At least one expert member and one judicial member.]
Notes:
The sanctioned strength of the tribunal constituted under NGT 2010 is 20 expert members and 20 judicial members. Every bench of such tribunal must consist of at least one expert member and one judicial member.
44. Arrange the following gases in the increasing order of Global warming potential:
1) Methane
2) Nitrous oxide
3) Perfluoro carbons
4) Sulfur hexafluoride
Select the correct option from the codes given below:
[A] 1, 2, 3, 4
[B] 2, 1, 3, 4
[C] 1, 2, 4, 3
[D] 2, 1, 4, 3
Show Answer
Correct Answer: A [1, 2, 3, 4]
Notes:
Carbon dioxide (CO2) has a GWP of 1 and serves as a baseline for other GWP values. GWP of Methane is 21. GWP of Nitrous oxide is 310, GWP of Perfluorocarbons is 140-11,700, and GWP of Sulfur hexafluoride is 23,900. Hence the correct sequence is 1, 2, 3, 4.
45. Which of the following statements are correct regarding Emission trading?
1. It is also known as carbon credit.
2. Carbon credits can be acquired through various means such as afforestation, renewable energy, CO2 sequestration, methane capture, buying from an exchange (carbon credits trading) etc.
3. One carbon credit is equivalent to one tonne of carbon dioxide emitted.
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Emission trading is also known as carbon credit. Carbon credits can be acquired through various means such as afforestation, renewable energy, CO2 sequestration, methane capture, buying from an exchange (carbon credits trading) etc. One carbon credit is equivalent to one tonne of carbon dioxide emitted.
46. Which of the following is a measurement of all greenhouse gases we individually produce and has units of tonnes (or kg) of carbon dioxide equivalent?
[A] Carbon footprint
[B] Primary footprint
[C] Secondary footprint
[D] Carbon diet
Show Answer
Correct Answer: A [Carbon footprint]
Notes:
Carbon Footprint is a measurement of all greenhouse gases that we produce individually and has units of tonnes (or kg) of carbon dioxide equivalent. It is made up of the sum of two parts, i.e., the primary footprint and the secondary footprint.
47. The Umbrella Group is a negotiation group consisting of how many countries?
[A] 9
[B] 10
[C] 11
[D] 12
Show Answer
Correct Answer: D [12]
Notes:
The Umbrella Group is a loose coalition of non-European Union developed countries. It was formed after the adoption of the Kyoto Protocol. The umbrella group consists of 12 countries although there is no formal membership.
48. What are Shola forests?
[A] Evergreen forests
[B] Moist Deciduous forests
[C] Dry Deciduous forests
[D] Hill forests
Show Answer
Correct Answer: D [Hill forests]
Notes:
Sholas are the local name for patches of stunted tropical montane forest found in valleys amid rolling grassland in the higher montane regions of South India.
49. 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.
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.
