EASY
Earn 100

What are natural satellites? Name any one of them. 

Important Questions on Stars and the Solar System

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Which is called Earth's satellite?
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What is the mass of the moon?
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Earth day is celebrated on:
MEDIUM
Why do we see different phases of the moon? 
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In which of the following phases is the Moon not visible at all?
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Why does not a lunar eclipse occur on all full moon days? 
 
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How many days does it take the moon to orbit the earth approximately?
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A lunar eclipse occurs when _____ comes between _____ and the Sun.
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When the Moon is completely hidden, it is called _____ (partial lunar eclipse/total lunar eclipse).

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Define the term Rilles.  
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What happens during a lunar eclipse? 
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Does the Moon actually change its shape every night?
 
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Solar eclipse occurs on a _____ (new moon/ full moon) day.
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The _____ shows different phases.
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The flat plains on the moon are called _____.
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When the shadow of the Moon falls on the Earth it is called a _____.
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The time taken from one New Moon to the next is 26 days.
MEDIUM
 Describe the surface of the Moon.
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Why does the same side of the moon face the Earth always? 
 
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Cotyledons are also called-