Q. 76. Volcanoes – Descriptions
1. Shield Volcanoes – Most explosive volcanoes, form calderas
2. Composite Volcanoes – Steep-sided volcanoes with alternating lava and ash layers
3. Caldera – Large, collapsed depression formed by a very explosive eruption
4. Flood Basalt Provinces – Extensive regions covered by vast flows of fluid lava
Which of the pairs given above is/are incorrectly matched?
(A) 1, 2 and 3
(B) 2 and 3 only
(C) 1 only
(D) 1 and 2 only
Answer:
Explanation:
Q. 77. The Ganga plains in India have two main types of alluvial soils: Khadar and Bhangar. Which of the following statements about these soils is/are accurate?
1. Bhangar is the newer alluvial soil deposited by yearly floods, enriching the land with fine silts.
2. Khadar represents older alluvium found farther away from the floodplains.
3. Both Khadar and Bhangar soils contain calcareous concretions (hardened deposits of calcium carbonate).
How many of the statements above is/are correct?
(A) Only One
(B) Only Two
(C) All Three
(D) None
Answer:
Explanation:
Q. 78. Consider the following two statements:
Statement I: Red clay is the most significant inorganic matter and an important member of pelagic deposits. Silicates of aluminium and oxides of iron are the chief constituents.
Statement II: The neritic deposits consist of matter derived from algae and are mostly in the form of liquid and generally known as ooze.
Choose the most appropriate answer from the options given below.
(A) Both statement I and statement II are true
(B) Both statements I and statement II are false
(C) Statement I is true, but statement II is false
(D) Statement I is false, but statement II is true
Answer:
Explanation:
Q. 79. Consider the following statements regarding Joint Forest Management (JFM):
1. The state of Jharkhand passed the first resolution for joint forest management.
2. It involves the local institutions in the management of forest resources.
3. The members are not entitled to use the non-timber forest produces.
How many of the statements given above are correct?
(A) Only one
(B) Only two
(C) All three
(D) None
Answer:
Explanation:
Q. 80. Consider the following statements with respect to mineral distribution in India:
1. Mica is found in Jharkhand, Andhra Pradesh, and Rajasthan.
2. The Patlands of Lohardaga in Jharkhand have rich deposits of Bauxite.
Which of the statements given above is/are correct?
(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2
Answer:
Explanation: