Question

please answer the questions

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Answer 1

Answer:

b

please make me brainlist and follow

Answer 2

Early sunrise and delayed sunset results in adding about a) 2 min to the day.

Explanation:

• When light rays travel from one medium to another, it undergoes refraction due to difference in densities of the medium.
• Density of medium affects the speed of light due to which it either bends away or towards the normal.
• Earth's atmosphere has different layers with various optical densities.
• Advancement in time duration of sunrise and sunset is also a consequence of atmospheric refraction caused when sunlight travels through different layers of atmosphere.
• We tend to see the sun 2 minutes before actual sunrise and continue to see the sun 2 minutes after actual sunset.
• The apparent position of sun is always some distance above the horizon even if the actual position is below the horizon.