Question

Define the term constellation and give an example
2. Why is the Earth called a "Unique Planet?
What are comets? lah​

Answer 1

Answer:

because water is available on earth

Explanation:

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Answer 2

Answer:

1) The earth is called "Unique planet" because this is the planet there is life can exists

2) Comets are the stars which are falling down and we see them like a long light