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Question 1 of 5
1. Question
2 points
EI – Nino is a complex weather system that appears once every 3-7 years . In the Southern and Central Pacific Ocean , it results in
1. Distortion of equatorial atmospheric circulation
2. Irregularities in the evaporation of sea water
3. Increase in the amount of diatoms in the ocean
Select the correct answer using the codes below :
Correct
Ans A
• Statements 1 and 2 : El – Nino is merely an extension of the warm equatorial current which gets replaced temporarily by cold Peruvian current or Humboldt current ( locate these currents in your atlas ) .
• The system involves oceanic and atmospheric phenomena with the a appearance of warm currents off the coast of Peru in the Eastern Pacific and affects weather in many places including India .
• This current increases the temperature of water on the Peruvian coast by 10 ° C . This affects the local temperature , and thus ocean currents , wind pattern leading to rainfall changes .
• It brings drought , floods and other weather extremes to different parts of the world .
• EI – Nino is used in India for forecasting long range monsoon rainfall .
• Statement 3 : It actually reduces the of phytoplankton and also amount diatoms because of the increase in the sea temperature . Planktons need a more ambient climate to survive .
Incorrect
Ans A
• Statements 1 and 2 : El – Nino is merely an extension of the warm equatorial current which gets replaced temporarily by cold Peruvian current or Humboldt current ( locate these currents in your atlas ) .
• The system involves oceanic and atmospheric phenomena with the a appearance of warm currents off the coast of Peru in the Eastern Pacific and affects weather in many places including India .
• This current increases the temperature of water on the Peruvian coast by 10 ° C . This affects the local temperature , and thus ocean currents , wind pattern leading to rainfall changes .
• It brings drought , floods and other weather extremes to different parts of the world .
• EI – Nino is used in India for forecasting long range monsoon rainfall .
• Statement 3 : It actually reduces the of phytoplankton and also amount diatoms because of the increase in the sea temperature . Planktons need a more ambient climate to survive .
Question 2 of 5
2. Question
2 points
Mangrove forests have reached a critical stage of decline in many parts of the world .
Which of these have caused the gravest threat to mangroves ?
1. Destruction of coral reefs
2. Fresh water diversion away from seas and oceans due to hydraulic structures
Which of the above is / are correct?
Correct
Ans C
• Statement 1 : Coral reefs provide the first barrier against currents and strong waves . When they are destroyed , the stronger – than – normal waves and currents reaching the coast can undermine the fine sediment in which the mangroves grow . This can prevent seedlings from taking root and wash away nutrients essential for mangrove ecosystems .
• Statement 2 : River changes are caused due to dams and irrigation reducing the amount of water reaching mangrove forests . This changes the salinity level of water in the forest . If salinity becomes too high , the mangroves cannot survive . Freshwater diversions can also lead to mangroves drying out . Oil pollution has also led to the threat ; it can smother mangrove roots and suffocate the trees .
Incorrect
Ans C
• Statement 1 : Coral reefs provide the first barrier against currents and strong waves . When they are destroyed , the stronger – than – normal waves and currents reaching the coast can undermine the fine sediment in which the mangroves grow . This can prevent seedlings from taking root and wash away nutrients essential for mangrove ecosystems .
• Statement 2 : River changes are caused due to dams and irrigation reducing the amount of water reaching mangrove forests . This changes the salinity level of water in the forest . If salinity becomes too high , the mangroves cannot survive . Freshwater diversions can also lead to mangroves drying out . Oil pollution has also led to the threat ; it can smother mangrove roots and suffocate the trees .
Question 3 of 5
3. Question
2 points
Which among the following sites provide the earliest evidence of settled agriculture in the Indian subcontinent?
(a) Dholavira
(b) Inamgarh
(c) Kalibangan
(d) Mehrgarh
Correct
Ans D
• Located in Kacchi plains of Baluchistan. Mehrgarh provides the earliest evidence of settled agriculture in the subcontinent and probably south Asia. It is considered a precursor to Indus Valley Civilization.
Incorrect
Ans D
• Located in Kacchi plains of Baluchistan. Mehrgarh provides the earliest evidence of settled agriculture in the subcontinent and probably south Asia. It is considered a precursor to Indus Valley Civilization.
Question 4 of 5
4. Question
2 points
In the Early Vedic period, who was known as Vishayapati?
Correct
Ans B
• In the Rig Vedic or early Vedic period:
1. The head of graham or family is Grahapati.
2. The leader of village or grama is Gramani.
3. The leader of Visu (a group of villages) is Vishayapati.
Incorrect
Ans B
• In the Rig Vedic or early Vedic period:
1. The head of graham or family is Grahapati.
2. The leader of village or grama is Gramani.
3. The leader of Visu (a group of villages) is Vishayapati.
Question 5 of 5
5. Question
2 points
In the context of British India, which among the following mainly contributed to the Vellore Mutiny?
1. New import and export policy of near the Malabar Coast.
2. Annexation of princely states.
3. Imposition of taxes on locals.
4. Introduction of new army regulations.
Select the correct answer using the codes spices below.
Correct
Incorrect
Ans C
• The Vellore Mutiny was a sepoy mutiny and the causes were rooted in the conditions of the Indian army contingents. Several causes are attributed to the Vellore Mutiny.
• Indian sepoys had to experience numerous difficulties when they went to serve in the Company’s army. They were forced to serve under the Company since their earlier patrons (the native chieftains) were all disappearing from the scene.
• The strict discipline, practice, new weapons, new methods and uniforms were all new to the sepoys. They were asked to shave the chin and to trim the moustache. They felt that these were designed to insult them and their religious and social traditions.
• There was also a popular belief that this was the beginning of a process by which all of them would be converted to Christianity. The English treated the Indian sepoys as their inferior. There was racial prejudice.
• This was the psychological base for the sepoy mutinies in India during the Company’s rule. The Vellore uprising was preceded by a series of protests by the Indian troops.
