When light from the Sun enters the Earth's atmosphere it gets refracted. This will cause an apparent image of the Sun to appear in the sky due to refraction. The image below shows how light gets bent by the Earth's atmosphere.
Which of the following would be an effect of this?
A. The sky appears to be blue in colour.
B. It is much cooler early in the morning and late in the evening.
C. At sunrise, the Sun is seen in the sky even though it is still below the horizon.
D. The length of daylight increases during summer and decreases during winter time.