Question

The day on the earth is longer by 4 minutes between sunrise and sunset 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​

Answer 1

The day on the earth is longer by 4 minutes between sunrise and sunset because the Earth has atmosphere (Option 4)

Explanation:

• The color of the sky during sunrise is blue whereas the sky is red colored during sunset.
• Tyndall’s effect refers to the scattering of particles in the air due to the passage of light.
• It was seen that when white light that consisted of 7 different colors passes through the Earth’s atmosphere, the dust particles in the air tend to scatter the light.
• The blue light shows the smallest wavelength whereas the red color shows a higher wavelength.
• The air particles tend to scatter the blue light more than the red light.
• As a result, the day on the earth appears to be longer than the night time.  

Answer 2

Answer:

option D) the earth has atmosphere