The time from sunrise to sunset is lengthened by about 4 minutes on the earth because

the earth revolves slowly around the sun

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the earth rotates slowly on its axis

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the earth is losing its round shape

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the earth has atmosphere

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Solution

The correct option is D the earth has atmosphere
The time from sunrise to sunset is lengthened by about 4 minutes due the presence of atmosphere on earth.
At the time of sunrise, the sun is below the horizontal line but sun rays reaches to us. It happens due to the continuous refraction of light through different layers of atmosphere of different densities and different refractive indices. So we see the sun 2 minutes before it actually comes above the horizontal line.
The same happens at sunset.

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Similar questions

The day is longer on the earth by about 4 minutes because :
(a) the earth is round in shape (b) the earth rotates on its axis
(c) the earth revolves around the sun (d) the earth has atmosphere

Q. Due to atmospheric refraction of sunlight, the time from sunrise to sunset is lengthened by about:
(a) 6 minutes
(b) 2 minutes
(c) 4 minutes
(d) 5 minutes

Q. Earth revolves around the sun in ________ orbit and also rotates around on its axis.

Statement1: There is a time delay between the actual sunrise and the apparent sunrise.

Statement2: Since the earth is spinning on its axis, so it takes sunlight 4 minutes to travel from one longitude to another.

Moon rotates on its own axis as it revolves around the earth. How many rotations does it make in one revolution?

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