Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Most of the Himalayan rivers are perennial. Reason (R) : They are fed by melting snow.

With reference to the Himalayan Rivers and the Peninsular Rivers, consider the following statements: 1. The Himalayan Rivers are examples of consequent drainage while the Peninsular rivers are examples of antecedent drainage. 2. The Himalayan rivers flow through deep V-shaped valleys while the Peninsular rivers flow in comparatively shallow valleys. 3. The Himalayan rivers are perennial in nature while the Peninsular rivers are seasonal or non-perennial. Which of the statements given above is not correct?

A

1 and 2 only

B

1 and 3 only

C

2 and 3 only

D

1 only

Consider the following statement with respect to Himalayan rivers and the peninsular rivers. 1. Himalayan rivers are old and mature while peninsular rivers are youthful in the activity. 2. Himalayan rivers are perennial while peninsular rivers are seasonal in nature. 3. Himalayan rivers show meandering activity in the plains but peninsular rivers do not. Which of the statements given above is/are correct?

A

1 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Compare the Himalayan river with the Peninsular river based on the following comparisons : 1. Most of the Himalayan rivers are perennial, whereas most of the Peninsular rivers are rainfed. 2. The gradient of the Himalayan river is steeper than the Peninsular river. 3. The Peninsular river causes more erosion on its way in comparison to the Himalayan river. Choose the correct answer from the options given below.

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

E

None of the above/More than one of the above

An assertion and a reason are given below. Assertion: The phenomenon of nuclear fission generates great energy. Reason: The process in which a nucleus is broken into two parts is called nuclear fission. Choose the answer. A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C. Both Assertion and Reason are false. D. Assertion is true but Reason is false.

A

B

D

C

B

D

C

Assertion(A) : Most of the Himalayan rivers are perennial.
Reason(R) : They are fed by melting snow.

A

R correctly explains A

B

R is true but A is fale

C

A is true but R is false

D

Both A and R are false

Choose the option which indicates a valid argument containing logically related statements that is, where the third statement is a conclusion drawn from the preceding two statements. A. Some straight forward things are people B. All Perennial things are cats C. Only cats are Perennial D. All Perennial things are People E. Some Straight forward things are cats F. Some Straight forward things are Perennial

A

BCA

B

CFD

C

DFA

D

EAB

Which of the following statements is/are correct? 1. Himalayan rivers have their origin in the snow-covered areas, hence are dry in winter season. 2. Rivers of the Peninsular Plateau have reached maturity. 3. Himalayan rivers depict all the three stages of normal cycle of erosion. Select the correct answer using the code given below.

A

2 only

B

1 and 3 only

C

2 and 3 only

D

1, 2 and 3

What among the following is/are the features of Himalayan rivers? 1. Rivers with fixed courses and well-adjusted valleys. 2. Perennial rivers receiving water from glaciers. 3. Young rivers with large basins. Which of the following statements given above is/are correct?

A

1 only

B

1 and 2 only

C

2 and 3 only

D

1, 2 and 3

An assertion (A) and a reason (R) are given below. Assertion (A): Perennial rivers mostly originate from the Himalayas. Reason (R): The fountains in the Himalayas feed the rivers. Choose the correct option.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true, but R is not the correct explanation of A

C

A is true, but R is false

D

A is false, but R is true

Glaciers present today have taken centuries to form. They keep on melting, forming rivers and lakes, and are essential for human survival in many places across the world. This melted ice is replaced by fresh snow that is converted into ice over time. Problems start when the water that is melting is more than the snow that is replacing it. According to the paragraph, which of the following would be a problem?

A

Coral reefs vanishing.

B

Re-contamination of the Earth, due to the melting of glaciers which contain deposits of pesticides.

C

Global warming, which is increasing temperatures.

D

None of the above.

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Most of the Himalayan rivers are perennial. Reason (R) : They are fed by melting snow.

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