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प्रश्न
How did the Earth form?
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
Short Answer Question:
Why is the planet Venus hotter than the planet Mercury?
Fill in the blank:
A typical galaxy may contain ___________ stars.
How much time does a ray of sunlight take to reach the Earth?
How many planets are there in the Solar System?
Name the planet closest to the Sun.
How many satellites are there in Solar System?
Mention two important features of Earth that make it a planet suitable for life.
Distinguish between the following pair.
Meteors and Meteorites
Find out the number of years to reach the following celestial bodies from the Earth: Nearest star from the Earth (Distance 150 million km)
‘Venus is considered Earth’s Twin’. Why?
What is “Geoid”?
Who am I?
No other planet has a living world like mine.
For what purpose are rockets used in space travel?
What information do man-made satellites provide?
The movement of the Earth on its axis is called.
The biggest continent is ______________.
How many oceans are there on the Earth?
The Earth is the _______ planet from the sun.
Only ______ percent of water is fresh on earth.
Match the following.
| 1 | Asia | Vatican city |
| 2 | Africa | Amazon rainforest |
| 3 | Europe | Sahara desert |
| 4 | South America | Kangaroo |
| 5 | Australia | Biggest continent |
