Advertisements
Advertisements
प्रश्न
Write about comets.
उत्तर
Comets are lumps of dust and ice that revolve around the Sun in highly elliptical orbits. Their period of revolution is very long. When approaching the Sun, a comet vaporizes and forms a head and tail. Some of the biggest comets even seen had tails 160 million (16 crores) km long. Many comets are known to appear periodically. One such comet is Halley’s Comet, which appears after nearly every 76 years. It was last seen in 1986. It will next be seen in 2062.
APPEARS IN
संबंधित प्रश्न
Fill in the blanks:
The planet which appears reddish in colour is _________.
Say if the statement given below is right or wrong. Rewrite the statement after correcting them.
Mercury is called a stormy planet.
Fill in the Blanks
______ are elongated fixed paths in which a celestial body always remains.
Why do we not feel the heat and light of the stars, even though they are so big and hot?
Look at the picture of the solar system and answer the following question.
Which planet is nearest to the sun?
Look at the picture of the solar system and answer the following question.
At what position is the earth from the sun?
State whether true or false. If false, correct the statement.
Mars is called the red planet.
Write a note on the inner planets.
The Sun and the Celestial bodies revolving around it form the ______.
______ is the brightest heavenly body in our night sky.
