1. Assertion (A):
   Vehicular emissions, the waste emitted by cars, buses and so on, are a cause of concern for all environmentalists.
   Reason (R1):
   The emission contains several gases and particulate material harmful to the health of the people.
   Reason (R2):
   In cities, the level of emissions from vehicles can be very high.

1. 1. If only reason 1 (R1) and not reason 2 (R2) is the reason for the assertion (A).

   
   
   

   2. If only reason 2 (R2) and not reason 1 (R1) is the reason for the assertion (A).

   
   
   

   3. If both (R1) and (R2) are reasons for the assertion (A).

   
   
   

   4. If neither (R1) nor (R2) is the reason for the assertion (A).

   
   
   

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1. View Hint View Answer Discuss in Forum

   Both the reasons are cause for environmental damage.

   Correct Option: C

   Both the reasons are cause for environmental damage.

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2. Assertion (A): : Icebergs, which are a solid form of water, float on water in the seas.
   Reason (R1):
   Icebergs have two-thirds of their mass under water and the other third visible above the surface.
   Reason (R2):
   Icebergs are heavier than water and displace water of the seas, making them float.

1. 1. If only reason 1 (R1) and not reason 2 (R2) is the reason for the assertion (A).

   
   
   

   2. If only reason 2 (R2) and not reason 1 (R1) is the reason for the assertion (A).

   
   
   

   3. If both (R1) and (R2) are reasons for the assertion (A).

   
   
   

   4. If neither (R1) nor (R2) is the reason for the assertion (A).

   
   
   

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1. View Hint View Answer Discuss in Forum

   R2 is incorrect and R1 is correct but not the reason for floating of the iceberges.

   Correct Option: D

   R2 is incorrect and R1 is correct but not the reason for floating of the iceberges.

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3. Assertion (A):: Most of the rivers in the North Indian plain experience flooding during the summer seasons.
   Reason (R1):
   The rivers mostly originate in the Himalayas and are fed by the melting snow.
   Reason (R2):
   The rivers are fed by the monsoon rains in the summer months.

1. 1. If only reason 1 (R1) and not reason 2 (R2) is the reason for the assertion (A).

   
   
   

   2. If only reason 2 (R2) and not reason 1 (R1) is the reason for the assertion (A).

   
   
   

   3. If both (R1) and (R2) are reasons for the assertion (A).

   
   
   

   4. If neither (R1) nor (R2) is the reason for the assertion (A).

   
   
   

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1. View Hint View Answer Discuss in Forum

   Both reasons contribute to the flooding

   Correct Option: C

   Both reasons contribute to the flooding

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4. Assertion (A): In the regional language films awards ceremony, most of the prizes were won by Bengali films.
   Reason (R1):
   Bengal has the oldest tradition of art and culture.
   Reason (R2):
   Bengali is spoken by a sizable population in the world.

1. 1. If only reason 1 (R1) and not reason 2 (R2) is the reason for the assertion (A).

   
   
   

   2. If only reason 2 (R2) and not reason 1 (R1) is the reason for the assertion (A).

   
   
   

   3. If both (R1) and (R2) are reasons for the assertion (A).

   
   
   

   4. If neither (R1) nor (R2) is the reason for the assertion (A).

   
   
   

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1. View Hint View Answer Discuss in Forum

   R2 is correct but it is not the reason for the assertion.

   Correct Option: D

   R2 is correct but it is not the reason for the assertion.

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5. Assertion (A):
   People in high altitude areas, such as Ladakh, are unable to work long hours or do heavy labour.
   Reason (R1):
   The cold climate makes them lethargic.
   Reason (R2):
   Thin air makes them tired even when doing light tasks.

1. 1. If only reason 1 (R1) and not reason 2 (R2) is the reason for the assertion (A).

   
   
   

   2. If only reason 2 (R2) and not reason 1 (R1) is the reason for the assertion (A).

   
   
   

   3. If both (R1) and (R2) are reasons for the assertion (A).

   
   
   

   4. If neither (R1) nor (R2) is the reason for the assertion (A).

   
   
   

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1. View Hint View Answer Discuss in Forum

   Only R2 is correct.

   Correct Option: B

   Only R2 is correct.

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