Question

3.
e
17. What is the duration of daytime at the Tropic of Cancer on:
(a) Equinoxes (b) Summer Solstice (c) Winter Solstice?
18. What causes twilight and dawn?
19. Why is the duration of twilight longer in high latitudes than at the equator?
e​

Answer 1

Explanation:

18

moving of air in atmosphere cause twinkling and down