A few substances are listed in the box.
| (p) | (q) | (r) | (s) | |
|---|---|---|---|---|
| A | (i), (x) | (viii), (ix) | (ii), (iii), (iv) | (v), (vii) |
| B | (i), (iii) | (v), (vii) | (ii), (viii), (x) | (iv), (vi), (ix) |
| C | (ii), (v) | (iii), (vii), (ix) | (i), (vi) | (iv), (viii), (x) |
| D | (i), (iii) | (viii), (ix), (x) | (ii), (v), (vii) | (iv), (vi) |
C
Proteins are building blocks of the body as they form tissues and muscles. They help in repair and maintenance of body. Proteins are found in meat, poultry & fish, pulses, eggs, and milk & milk products like yoghurt and cheese. So, X can be Protein.
C
Shape of the shadow will deped on the edges of the object presented to the light source. So, if the same object is rotated the shadow will change its shape.
D
Bus is a means of land transport while the other three are means of air transport.
A
The picture shows a postbox in which we put letters, postcards etc. It is related to a post office.
