822. Which is considered the most stable ecosystem among the following?
Answer: Ocean
A
Ocean
B
Forest
C
Mountain
D
Desert
Detailed Explanation
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The source selects the ocean. Marine ecosystems cover most of Earth's surface and contain highly diverse food webs, from plankton to large marine predators.
825. The mind of the makers of the Constitution of India is reflected in the:
Answer: Preamble
A
Preamble
B
Fundamental Rights
C
Directive Principles
D
Fundamental Duties
Detailed Explanation
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The Preamble expresses the Constitution's basic ideals and objectives. It declares India a sovereign, socialist, secular, democratic republic and sets out justice, liberty, equality and fraternity.
826. Which kind of emergency can be proclaimed on grounds of failure of constitutional machinery in a State?
Answer: State Emergency
A
National Emergency
B
State Emergency
C
Financial Emergency
D
State and Financial Emergency both
Detailed Explanation
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President's Rule under Article 356 is imposed when the constitutional machinery of a state fails. It is commonly called State Emergency, although that phrase is not the Constitution's formal terminology.
827. Who is considered the custodian of the Constitution of India?
Answer: Supreme Court of India
A
President of India
B
Prime Minister of India
C
Lok Sabha Secretariat
D
Supreme Court of India
Detailed Explanation
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The Supreme Court of India is commonly described as the custodian of the Constitution because it exercises judicial review and protects constitutional supremacy.
828. By which Constitutional Amendment was Delhi designated the National Capital Territory?
Answer: 69th Amendment
A
61st Amendment
B
69th Amendment
C
71st Amendment
D
79th Amendment
Detailed Explanation
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The 69th Constitutional Amendment Act, 1991 gave Delhi the status of National Capital Territory and provided for a Legislative Assembly and Council of Ministers.
831. Which Union Ministry handles India's Foreign Trade Policy?
Answer: Commerce and Industry
A
Defence
B
External Affairs
C
Commerce and Industry
D
Home Affairs
Detailed Explanation
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India's Foreign Trade Policy is handled by the Ministry of Commerce and Industry, particularly through the Directorate General of Foreign Trade (DGFT).
833. Which Ahom king conducted the first organised population census?
Answer: Suhungmung
A
Sukapha
B
Suhungmung
C
Sukhampha
D
Supimphaa
Detailed Explanation
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The source attributes the first organised population census to Suhungmung (Dihingia Raja). His reign also saw major territorial expansion and administrative development.
834. Who was the first Ahom ruler to officially accept Hinduism?
Answer: Jayadhwaj Singha
A
Jayaditya Singha
B
Jayadhwaj Singha
C
Pramatta Singha
D
Pratap Singha
Detailed Explanation
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Jayadhwaj Singha is identified in the source as the first Ahom ruler to officially accept Hinduism. His reign followed the traumatic Mughal invasion led by Mir Jumla.
835. The Association Gyan Pradayini Sabha was initiated by:
Answer: Anandaram Dhekial Phukan and Gunabhiram Barua
A
Anandaram Dhekial Phukan and Gunabhiram Barua
B
Anandaram Dhekial Phukan and Devicharan Barua
C
Jagannath Barua and Gunabhiram Barua
D
Jagannath Barua and Manik Chandra Barooah
Detailed Explanation
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Anandaram Dhekial Phukan and Gunabhiram Barua are identified as founders. Their activities were part of the 19th-century Assamese intellectual and social reform movement.
836. How many Autonomous Councils are there in Assam under the Sixth Schedule, according to the source?
Answer: Three
A
Five
B
Four
C
Three
D
Six
Detailed Explanation
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The source gives three Sixth Schedule Autonomous Councils in Assam: the Bodoland Territorial Council, Dima Hasao Autonomous Council and Karbi Anglong Autonomous Council.
837. Who first built the Rang Ghar with bamboo and wood?
Answer: Rudra Singha
A
Rudra Singha
B
Pramatta Singha
C
Rajeswar Singha
D
Purandar Singha
Detailed Explanation
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The source credits Rudra Singha with the earlier bamboo-and-wood Rang Ghar. The present masonry structure is associated with the reign of Pramatta Singha.
838. Which festival is associated with the birth of the Brahmaputra River?
Answer: Asokastami
A
Sivratri
B
Asokastami
C
Ambubachi
D
Chath Puja
Detailed Explanation
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Asokastami is associated in the source with the sacred tradition of the Brahmaputra's origin. The festival is observed at major pilgrimage sites along the river, including Hajo.