What is light pollution?

Dark clouds in the sky

Artificial light obscuring stars

Natural light from the moon

Our Sun's brightness

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Q1.

What are groups of stars that form recognizable patterns called?

Q2.

Which of the following is a reason why constellations were important in ancient times?

Q3.

What is the main source of light for stars?

Q4.

Which constellation is known as 'The Big Dipper'?