DAY 32 (18-10-23)
Q1. Consider the following statements :
- Continental crust is thinner as compared to the Oceanic crust.
- The upper portion of the mantle is called asthenosphere.
- The core is mostly made up of very heavy material such as nickel and iron.
Which of the following statement(s) given above is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
Answer: (c)
Explanation:
Statement 1 is incorrect:The crust is the outermost solid part of the earth. The thickness of the crust varies under the oceanic and continental areas. Oceanic crust is thinner as compared to the continental crust. The mean thickness of oceanic crust is 5 km whereas that of the continental is around 30 km.
Statement 2 is correct: The portion of the interior beyond the crust is called the mantle. The mantle extends from Moho’s discontinuity to a depth of 2,900 km. The upper portion of the mantle is called asthenosphere. It is considered to be extending upto 400 km. It is the main source of magma that finds its way to the surface during volcanic eruptions.
Statement 3 is correct: The core-mantle boundary is located at the depth of 2,900 km. The outer core is in liquid state while the inner core is in solid state. The core is made up of very heavy material mostly constituted by nickel and iron. It is sometimes referred to as the nife layer.
Q2. Which one of the following is not a cold current?
(a) Kuroshio Current
(b) Labrador Current
(c) Peru Current
(d) Benguela Current
Answer: (a)
Explanation:
- The ocean currents may be classified based on their depth as surface currents and deep-water currents.
- Ocean currents can also be classified based on temperature: as cold currents and warm currents.
- Cold currents bring cold water into warm water areas. These currents are usually found on the west coast of the continents in the low and middle latitudes (true in both hemispheres) and on the east coast in the higher latitudes in the Northern Hemisphere.
- Warm currents bring warm water into cold water areas and are usually observed on the east coast of continents in the low and middle latitudes (true in both hemispheres). In the northern hemisphere they are found on the west coasts of continents in high latitudes.
Q3. Who of the following moved the ‘Objective Resolution’ in the Constituent Assembly?
(a) B.R. Ambedkar
(b) J.L Nehru
(c) Rajendra Prasad
(d) C.D. Deshmukh
Answer: (b)
Explanation:
The Objective Resolution was moved on December 13, 1946 by Pandit Jawaharlal Nehru,which provided the philosophy and guiding principles for framing the Constitution. This Resolution was unanimously adopted by the Constituent Assembly on 22 January 1947.It forms the basis of Preamble of Indian Constitution. The Resolution states –
- To foster unity of the nation and to ensure its economic and political security, to have a written Constitution, and to proclaim India as a Sovereign, Democratic Republic.
- To have a federal form of government with the distribution of powers between the Centre and the States.
- To guarantee and secure justice, equality, freedom of thought, expression, belief, faith, worship, vocation, association and action to all the people of India.
- To provide adequate safeguards for minorities, backward and tribal areas and depressed and other backward classes.
- To maintain the integrity of the territory of the Republic and the sovereign rights on land, sea and air according to the law of civilized nations.
- To attain rightful and honoured place in the world and make willing contribution to the promotion of world peace and the welfare of mankind.
Q4. Consider the following statements :
- Punch marked coins were present during Mahajanapada period.
- Silver Tanka and Copper Jital was introduced by Iltutmish.
Which of the statements given above are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Answer: (c)
Explanation:
Statement 1 is correct:Punch marked coins issued by various Mahajanapadas (around 6th century BC): The first Indian punch marked coins called Puranas, Karshapanas or Pana were minted in the 6th century BC by the various Janapadas and Mahajanapadas of the Indo-Gangetic Plain.
Statement 2 is correct: The coins had inscriptions in the form of king’s name, title and the date as per Hijri calendar. The coins did not bear any image of the issuing monarch as there was a prohibition of idolatry in Islam. For the first time, the name of the mint was also inscribed in the coins. The Sultans of Delhi issued gold, silver, copper and billon coins. Silver Tanka and Copper Jital was introduced by Iltutmish. Alauddin Khilji changed the existing design by dropping the name of the Khalif and replaced it by self-praising titles.
Q5. Consider the following statements :
- Khongjam Parva is folk music from Arunachal Pradesh.
- Powda is folk music from state of Maharashtra.
Which of the statements given above are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Answer: (b)
Explanation:
Statement 1 is incorrect: Khongjam Parva is an important folk music from the state of Manipur. It is a popular ballad genre which is a musical narration of the battle of Khongjom fought between the British army and the Manipuri resistance forces in 1891.
Statement 2 is correct: Powda is also a folk type emerging from the state of Maharashtra. They are usually ballads sung for the heros of the past like Shivaji. These songs describe the events of their glorious past and their heroic deeds.