681: Which one of the following statements is correct?

(a) Neither the Finance Commission nor the Planning Commission is a constitutional body

(b) The scope of the Finance Commission is limited to a review of the revenue segment of the budget while the Planning Commission takes an overall review embracing both capital and revenue requirements of the States

(c) No one can be a member of both the Finance Commission and the Planning Commission at the same time

(d) There is no overlapping of work and responsibility of the Finance Commission and those of the Planning Commission
682: Arrange the following three atmospheric layers starting from the surface of the earth

A. Stratosphere

B. Ionosphere

C. Troposphere

(a) A, B, C

(b) C, A, B

(c) A, C, B

(d) C, B, A
683: Assertion (A) :
A man standing on a completely friction-less surface can propel himself by whistling.

Reason (R) :
If no external force acts on a system, its momentum cannot change.

(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 a correct explanation of A

(c) A is true, but R is false

(d) A is false, but R is true
684: Consider the following pairs:

Traditions - Communities

1. Chaliha Sahib Festival - Sindhis
2. Nanda Raj Jaat Yatra - Gonds
3. Wari-Warkari - Santhals

Which of the pairs given above is/are correctly matched?

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) None of the above
685: Assertion (A)

Photosynthesis and vision are the phenomenon of visible light

Reason (R)

The visible light is absorbed by small particles containing chlorophylls as well as the retina of the eye

(a) if A and R both are correct and R is the correct explanation of A

(b) if A and R both are correct but R is not the correct explanation of A

(c) if A is incorrect but R is correct

(d) if A is correct but R is incorrect