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प्रश्न
Study the picture and answer the questions that follow.
(a) What is meant by the Solar System?
(b) Give two differences between a planet and a star.
(c) Name the planets known as terrestrial planets.
(d) Give two advantages the earth has over other planets.
(e) What are satellites?
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उत्तर
(a) The sun along with eight planets and asteroids forms the Solar System.
(b)
- The stars like the sun radiate heat and light. Planets have no light of their own. They reflect the light of their stars.
- The stars are large burning masses very far from us while the planets are solid bodies nearer to us.
(c) The planets within the asteroids belt i.e. Mercury, Venus, Earth, and Mars, are called the Terrestrial planets.
(d)
- The earth enjoys an ideal average temperature of 17°C
- The earth consists of the life-system.
(e) The satellites are the celestial bodies that revolve around the planets.
संबंधित प्रश्न
Short Answer Question:
Why are the inner planets called the terrestrial planets?
Short Answer Question:
How did the earth get its atmospheric blanket?
How many satellites are there in Solar System?
What makes our Sun as an ordinary star in the universe?
Distinguish between inner and outer planets.
Which unit is used for measuring distances in the universe?
Why does the moon appear big in the sky though it is smaller than other heavenly bodies?
Answer the following question briefly.
How does a planet differ from a star?
Which of the statement(s) is/are true?
Statement I: Earth is called a watery planet.
Statement II: The rotation of the Earth causes seasons.
Match the following.
| 1 | Asia | Vatican city |
| 2 | Africa | Amazon rainforest |
| 3 | Europe | Sahara desert |
| 4 | South America | Kangaroo |
| 5 | Australia | Biggest continent |
