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प्रश्न
How did the Earth form?
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उत्तर
- Approximately 4.54 billion years ago, Solar System was a cloud of dust and gas known as Solar Nebula.
- Due to an explosion, these particles collapsed and began to spin having the sun at centre.
- The bigger particles which revolve around the sun are called planets. Thus the planet Earth formed.
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संबंधित प्रश्न
Give any two features of the earth that make it a ‘Unique Planet’.
Short Answer Question:
What are the Jovian planets? Name them.
Fill in the blank:
The earth has an average temperature of _______.
Which planet has the largest number of satellites?
How many satellites are there in Solar System?
Distinguish between the following pair.
Superior and Inferior planets.
Distinguish between the following pair.
Periodical and Non-periodical comets
Distinguish between inner and outer planets.
Name the following:
The planet farthest from the Sun.
Which is the unit adopted for measuring the distance in the Universe? Give a reason for its choice.
What do you understand by ‘Terrestrial Planet’?
Why is Mercury the hottest planet of the Solar System?
From which Greek word is the word ‘planet’ derived?
What information do man-made satellites provide?
The movement of the Earth on its axis is called.
The continent _____________ is covered by ice.
________ Percentage of our earth is covered by saltwater.
Only ______ percent of water is fresh on earth.
