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Which of the following conditions are favourable the formation of Delta?
1. River needs to carry enough sediment
2. Sea should be shallower at the mouth of the river
3. Tide at the coast
4. No large lake in the river course
Select the correct answer using the code given below:
Ans) C
Exp)
Following are the favourable condition for the formation of the delta:
• The river must have enough load.
• There should not be extensive deposition in the middle stage e.g. Presence of lake in between.
• The river’s load must be deposited faster than it can be removed by the action of currents and tides.
• Presence of shallow adjoining sea or continental shelf.
• The velocity of a river must be sufficiently low to allow most of its load to be deposited.
Ans) C
Exp)
Following are the favourable condition for the formation of the delta:
• The river must have enough load.
• There should not be extensive deposition in the middle stage e.g. Presence of lake in between.
• The river’s load must be deposited faster than it can be removed by the action of currents and tides.
• Presence of shallow adjoining sea or continental shelf.
• The velocity of a river must be sufficiently low to allow most of its load to be deposited.
Consider the following pairs:
(Island & Country)
1. Assumption Island: Seychelles
2. Hulhule Island: Maldives
3. Diego Garcia: France
Which of the pairs given above is /are correctly matched?
Ans) B
Exp)
• Assumption Island is a small island in the Outer Islands of Seychelles north of Madagascar.
• Hulhule is an island in the North Male Atoll of the Maldives.
• Diego Garcia is an island overseas territory of the United Kingdom. It is a militarised atoll just south of the equator in the central Indian Ocean, and the largest of 60 small islands comprising the Chagos Archipelago.
Ans) B
Exp)
• Assumption Island is a small island in the Outer Islands of Seychelles north of Madagascar.
• Hulhule is an island in the North Male Atoll of the Maldives.
• Diego Garcia is an island overseas territory of the United Kingdom. It is a militarised atoll just south of the equator in the central Indian Ocean, and the largest of 60 small islands comprising the Chagos Archipelago.
Debris avalanches and landslides occur very frequently in the Himalayas. Which of the following is/are correct reason/reasons behind it?
1. They are mostly made up of sedimentary rocks and unconsolidated and semi-consolidated deposits.
2. The Himalayas are tectonically active.
3. The slopes are very steep.
Select the correct answer using the code given below:
Ans) D
Exp)
• All of the statements are correct. Debris avalanches and landslides occur very frequently in the Himalayas. There are many reasons for this. One, the Himalayas are tectonically active.
• They are mostly made up of sedimentary rocks and unconsolidated and semi-consolidated deposits. The slopes are very steep.
Ans) D
Exp)
• All of the statements are correct. Debris avalanches and landslides occur very frequently in the Himalayas. There are many reasons for this. One, the Himalayas are tectonically active.
• They are mostly made up of sedimentary rocks and unconsolidated and semi-consolidated deposits. The slopes are very steep.
Consider the following statements:
1. The Panama Canal connects the Atlantic Ocean and the Pacific Ocean.
2. The Suez Canal connects the Mediterranean Sea and the Black Sea.
3. The Malacca Strait connects the Indian Ocean and the Pacific Ocean.
Which of the statements given above is/are correct?
Ans) C
Exp)
• Statement 1 is correct. The Panama Canal connects the Atlantic Ocean in the east to the Pacific Ocean in the west. It has been constructed across the Panama Isthmus between Panama City and Colon by the U.S. government which purchased 8 km of area on either side and named it the Canal Zone. The Canal is about 72 km.
• Statement 2 is incorrect. The Suez Canal was constructed in 1869 in Egypt between Port Said in the north and Port Suez in the south linking the Mediterranean Sea and the Red Sea. It gives Europe a new gateway to the Indian Ocean and reduces direct sea-route distance between Liverpool and Colombo compared to the Cape of Good Hope route.
• Statement 3 is correct. The Strait of Malacca links the Pacific Ocean and the Indian Ocean to the east and west, respectively.
Ans) C
Exp)
• Statement 1 is correct. The Panama Canal connects the Atlantic Ocean in the east to the Pacific Ocean in the west. It has been constructed across the Panama Isthmus between Panama City and Colon by the U.S. government which purchased 8 km of area on either side and named it the Canal Zone. The Canal is about 72 km.
• Statement 2 is incorrect. The Suez Canal was constructed in 1869 in Egypt between Port Said in the north and Port Suez in the south linking the Mediterranean Sea and the Red Sea. It gives Europe a new gateway to the Indian Ocean and reduces direct sea-route distance between Liverpool and Colombo compared to the Cape of Good Hope route.
• Statement 3 is correct. The Strait of Malacca links the Pacific Ocean and the Indian Ocean to the east and west, respectively.
In which one of the following states is Ansupa Lake located?
Ans) D
Exp)
• The Ansupa Lake is located in Odisha. It is the largest freshwater lake in the state.
• This lake silted up following a drastic reduction of water inflow from the Mahanadi. The Chilika Development Authority has taken up restoration measures under funding from the National Plan for Conservation of Aquatic Ecosystems.
Ans) D
Exp)
• The Ansupa Lake is located in Odisha. It is the largest freshwater lake in the state.
• This lake silted up following a drastic reduction of water inflow from the Mahanadi. The Chilika Development Authority has taken up restoration measures under funding from the National Plan for Conservation of Aquatic Ecosystems.