Which of the following is called "Blue Planet"?

Which of the following is called "Blue Planet"?

مندرجہ ذیل میں سے کس کو "نیلا سیارہ" کہا جاتا ہے
Explanation
Earth and Moon

Blue Planet for Earth

The planet which has the highest density is? Earth

Number of moons on Earth: 1

Which planet is known as a watery planetEarth

75% of Earth’s surface is covered by water
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ND5-5-2023