Question : In the absence of the earth's atmosphere, sky would appear:
Option 1: blue
Option 2: deep red
Option 3: white
Option 4: black
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Correct Answer: black
Solution : The correct option is black.
Even during the day, the sky would appear absolutely black without the atmosphere that exists on Earth. This is because the blue color of the sky that we see on Earth is mostly caused by sunlight being scattered by the molecules of the atmosphere. The sky would be colorless without an atmosphere since there wouldn't be any particles to disperse light.
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Question : Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by:
Question : A person who is colourblind cannot distinguish between
Question : Select the option that expresses the given sentence in active voice.
Most of Earth's surface is covered by water.
Question : A glass jar contains 6 white, 8 black, 4 red, and 3 blue marbles. If a single marble is chosen at random from the jar, what is the probability that it is black or blue?
Question : Directions: Two different positions of the same dice have different colours - White, Red, Blue, Yellow, Green, and Black - written on them. Identify the colour on the face opposite the face showing Blue.
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