Q. 71
Question: Arrange the following accidents/episodes in ascending (year wise) order:
(i) Bhopal Gas Tragedy
(ii) Chernobyl Disaster
(iii) Fukushima Daiichi Disaster
(iv) Oil Spill in the Gulf of Mexico
Select the correct answer using the codes given below.
(A) (i)–(ii)–(iv)–(iii)
(B) (ii)–(i)–(iv)–(iii)
(C) (iv)–(i)–(ii)–(iii)
(D) (ii)–(iii)–(i)–(iv)
Answer: (A) Explanation:
- Bhopal: 1984
- Chernobyl: 1986
- Gulf Oil Spill: 2010
- Fukushima: 2011
Q. 72
Question: Consider the following National Parks of Assam and arrange them in ascending order with respect to the year of declaration as National Park:
(i) Raimona National Park
(ii) Manas National Park
(iii) Dibru-Saikhowa National Park
(iv) Nameri National Park
Select the correct answer using the codes given below.
(A) (i)–(ii)–(iii)–(iv)
(B) (ii)–(iv)–(iii)–(i)
(C) (iii)–(ii)–(iv)–(i)
(D) (i)–(ii)–(iv)–(iii)
Answer: (B) Explanation:
- Manas: 1990
- Nameri: 1998
- Dibru-Saikhowa: 1999
- Raimona: 2021
Q. 73
Question: Match List-I with List-II:
| List-I | List-II |
| a. Mulch | 1. Variation in species composition across different habitats |
| b. Niche | 2. Movement of nutrient-rich bottom water to ocean’s surface |
| c. Beta diversity | 3. A protective cover on the ground, may be of dried leaves |
| d. Upwelling | 4. The functional role and position of a species in an ecosystem |
Select the correct answer using the codes given below.
(A) a-3, b-4, c-1, d-2
(B) a-3, b-1, c-2, d-4
(C) a-1, b-4, c-2, d-3
(D) a-4, b-2, c-3, d-1
Answer: (A) Explanation:
- Mulch → protective cover
- Niche → functional role
- Beta diversity → compositional change
- Upwelling → nutrient up flow
Q. 74
Question: According to the Assam State Action Plan on Climate Change (2015-2020), which of the following temperature and rainfall changes has occurred in Assam during the period 1951–2010?
(A) Annual mean temperature and annual rainfall have both increased
(B) Annual mean temperature and annual rainfall have both decreased
(C) Annual mean temperature has increased, while annual rainfall has decreased
(D) No noticeable changes in temperature and rainfall trends
Answer: (A)
Explanation: SAPCC Assam reports both mean temperature and rainfall increased over 1951–2010.
Q. 75
Question: Bioremediation using fungi is known as
(A) Mycoremediation
(B) Phytoremediation
(C) Phytoremediation
(D) Entomoremediation
Answer: (A)
Explanation: Mycoremediation = use of fungi to degrade pollutants.