Question

(b) Stat
13. Fig. 7.52 shows a concave mirror with its pole at P.
focus F and centre of curvature C. Draw ray diagram
to show the formation of image of an object OA.
21. (a) Sa
A
С C
F
Ans.(a) A:
22. (a) W
(b) w​

Answer 1

Answer:

The plants grow deep roots to gather water that is far down under the surface of the earth. At such a deep level, the water evaporates from the desert heat much slower than it does closer to the surface.