21. US missionary, John Allen Chau died during the visit of which of the following islands of India?
[A] North Sentinel Island
[B] South Sentinel Island
[C] Battimalv Island
[D] Rutland Island
Show Answer
Correct Answer: A [North Sentinel Island]
Notes:
In the year 2018, US missionary, John Allen Chau died during the visit of North Sentinel Island. Sentinelese people are indigenous people in voluntary isolation who denied, even sometimes violently, interaction with the outside world.
22. Which one of the following rivers of India does not form a delta?
[A] Narmada
[B] Kaveri
[C] Mahanadi
[D] Ganga
Show Answer
Correct Answer: A [Narmada]
Notes:
The Narmada, also known as the Rewa, is a river in central India and the fifth-longest river of India. It ranked third among the rivers that flows entirely within India, after the Godavari and the Krishna.
23. The confluence of Koel and Sankh rive is known as which of the following rivers?
[A] Subarnarekha river
[B] Brahmani river
[C] Baitarani river
[D] Pennar river
Show Answer
Correct Answer: B [Brahmani river]
Notes:
The confluence of Koel and Sankh rive is known as the Brahmani river. Koel and Sankh river meet each other at Rourkela.
24. Purna River is the tributary of which of the following river?
[A] Krishna
[B] Godavari
[C] Kaveri
[D] Mahanadi
Show Answer
Correct Answer: B [Godavari]
Notes:
Purna River is the left bank tributary of the Godavari river. It is originated from the Ajanta Range. It is located in the rain shadow region of Maharashtra.
25. The alluvial soil covers what percent of the total area of India?
[A] 43.36%
[B] 32.15%
[C] 21.52%
[D] 15.25%
Show Answer
Correct Answer: A [43.36%]
Notes:
The alluvial soil covers about 43.36% (143.1 million sq. km.) of the total area of India. It mainly occurs in the northern plain (Sutlej, Brahmaputra and Ganga plain).
26. Which of the following types of forest occupies the largest area?
[A] Montane wet temperate forest
[B] Sub-tropical dry evergreen forest
[C] Tropical moist deciduous forest
[D] Tropical wet evergreen forest
Show Answer
Correct Answer: C [Tropical moist deciduous forest]
Notes:
Tropical moist deciduous forest occupies the largest area (341,100 square kilometers). It covers the state of Andhra Pradesh, Chhattisgarh, Jharkhand, Madhya Pradesh, Maharashtra, Orissa, and Telangana states.
27. The iron ore of Bailadila is mainly transported to Japan through which of the following ports?
[A] Jawaharlal Nehru Port
[B] Visakhapatnam Port
[C] Mangalore Port
[D] Haldia Port
Show Answer
Correct Answer: B [Visakhapatnam Port]
Notes:
Bailadila iron ore is located in the state of Chattisgarh. It is the largest mechanized mine in India. The iron ore of Bailadila is mainly transported to Japan through Visakhapatnam Port.
28. Which among the following pairs are correct?
1. GMR Vasavi Power Plant- Diesel-based
2. Dabhol Power Station- Gas-based
3. Vindhyachal Super Thermal Power Station- Coal-based
Choose the correct option from the codes given below :
[A] 1 & 2
[B] 1 & 3
[C] 2 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
The correct matches are GMR Vasavi Power Plant (Tamil Nadu)- Diesel-based, Dabhol Power Station (Maharashtra)- Gas-based, Vindhyachal Super Thermal Power Station (Madhya Pradesh)- Coal-based.
29. The energy stored as heat in the earth is known as which of the following?
[A] Hydro-energy
[B] Fossil energy
[C] Bio-energy
[D] Geo-thermal energy
Show Answer
Correct Answer: D [Geo-thermal energy]
Notes:
The energy stored as heat in the earth is known as Geo-thermal energy.
30. Consider the following statements regarding possible reasons and solutions for reduced crop yield despite using chemical fertilizers:
- The soil has become more acidic
- The soil has become more alkaline
- The yield can be improved by adding slaked lime to the soil
- The yield can be improved by adding some organic matter
- The yields can be improved by adding common salt
Which of the above statements is/are correct?
[A] 1 & 2
[B] 1 & 3
[C] 1, 3 & 4
[D] 2, 3 & 5
Show Answer
Correct Answer: B [1 & 3]
Notes:
The excessive use of chemical fertilizers for a long time can make the soil acidic. The yield can be improved by adding slaked lime to the soil as it can help increase the pH of the soil and rectify the acidic condition. It has to be noted that adding organic matter or common salt will not necessarily improve the yield, as the decision should be based on the specific requirements of the soil.
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