(c) Fig. 2 shows the same pool and the same points A, B, S and T. The critical angle for the water is 50
T.
water
55°
39°
B
A
Fig. 2
(in) 1
A beam of light is directed upward from A to S. Describe what happens to the
beam at S.

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere