Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Dachigam National Park is located in which of the following states?
[A] Jammu and Kashmir
[B] Uttarakhand
[C] Sikkim
[D] Himanchal Pradesh
Show Answer
Correct Answer: A [Jammu and Kashmir]
Notes:
Dachigam National park is located in the Zabarwan Range of the western Himalayas, 22 kilometers from Srinagar, Jammu and Kashmir. It is the only area where Kashmir stag is found.
42. Dudhwa National Park is situated in which of the following states?
[A] Uttarakhand
[B] Uttar Pradesh
[C] Madhya Pradesh
[D] Chhattisgarh
Show Answer
Correct Answer: B [Uttar Pradesh]
Notes:
The Dudhwa National Park is a national park in the Terai belt of marshy grasslands of northern Uttar Pradesh, India. It became a tiger reserve in 1879 and was notified as a national park in January 1977.
43. Consider the following:
- Uncontrolled growth in human population
- Rapid industrialization
- Urbanization
- Uncontrolled exploitation of nature
Which of the above statements is / are causes of pollution?
[A] Only 1 & 2
[B] Only 1, 2 & 4
[C] Only 3 & 4
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: D [1, 2, 3 & 4]
Notes:Some of the causes of pollution include:
- Uncontrolled growth of human population
- Urbanization
- Rapid industrialization
- Uncontrolled exploitation of nature
- Radioactivity
- Volcanic eruptions
- Forest fires
- Strong winds
All the given options contribute to pollution.
44. Which of the following gas is emitted naturally by the soil?
[A] Carbon Dioxide
[B] Radon
[C] Ozone
[D] Formaldehyde
Show Answer
Correct Answer: B [Radon]
Notes:
Radon is a gas that is emitted naturally by the soil and because of modern houses which have poor ventilation, it is confined inside the house and causes lung cancers. Its symbol is Rn and atomic number 86.
45. Which of the following are the dimensions for adaptation and mitigation under National Mission for Sustainable Agriculture?
1. Water Efficiency
2. Pest Management
3. Agricultural Insurance
4. Access to Information
Select the correct option from the codes given below:
[A] Only 1, 2 & 3
[B] Only 2, 3 & 4
[C] Only 1, 3 & 4
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: D [1, 2, 3 & 4]
Notes:
The dimensions for adaptation and mitigation under National Mission for Sustainable Agriculture are as follows: 1. Improved Crop Seeds, Livestock and Fish Culture, 2. Pest Management, 3. Water Efficiency, 4. Improved Farm Practices, 5. Nutrient Management, 6. Agricultural Insurance, 7. Credit Support, 8. Markets, 9. Livelihood Diversification and 10. Access to Information
46. Which of the following is an organism that obtains hydrogen or electrons from organic substrates?
[A] Lithophiles
[B] Organotroph
[C] Mixotroph
[D] None of the above
Show Answer
Correct Answer: B [Organotroph]
Notes:
Organisms that obtains hydrogen or electrons from organic substrates are known as Organotrophs. Some organotrophs such as animals and many bacteria can also be heterotrophs.
47. 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.
48. 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.
49. Which of the following factors is/are not affected by speed and direction of wind?
[A] Location on the earth
[B] Revolution of earth
[C] Local conditions
[D] Height from ground
Show Answer
Correct Answer: B [Revolution of earth]
Notes:Blowing or moving air is called wind. The speed of wind may vary from 5-10 km/h (gentle breeze) to 700-800 km/h (tornado). The speed and direction of wind is affected by the following factors :
- Location on the earth
- Rotation of the earth
- Local conditions
- Height from the ground
50. In which country is the Pantanal wetland located?
[A] Brazil
[B] Argentina
[C] Peru
[D] Bolivia
Show Answer
Correct Answer: A [Brazil]
Notes:
The Pantanal Conservation Area, recognized as a UNESCO World Heritage Site, accounts for 1.3% of the vast Pantanal wetland in Brazil and spans across 187,818 hectares. It provides shelter for more than 650 bird species, 325 fish species, and 80 mammal species, including giant armadillo and jaguar. The area’s unique ecosystem extends from floodplains to the Amolar Mountains, supporting diverse habitats and maintaining regional fish stocks. Moreover, it is an all-important breeding ground for wetland birds and refuge for globally threatened species like the hyacinth macaw. Additionally, it is a Ramsar Wetland and a UNESCO Man & Biosphere Reserve.
