i. The planet which is farthest from the Sun is Neptune.
ii. The planet which appears reddish in colour is Mars.
iii. A group of stars that appear to form a pattern in the sky is known as a constellation.
iv. A celestial body that revolves around a planet is known as satellite.
v. Shooting stars are actually not stars.
vi. Asteroids are found between the orbits of Mars and Jupiter.
vii. Stars appear to move from east to west.
viii. The Pole Star is not visible from the southern hemisphere.
ix. Orion is also called the Hunter.
i. Pole Star is a member of the solar system. F
ii. Constellation appears to move in the sky from east to west. T
iii. Mercury is the smallest planet of the solar system. T
iv. Uranus is the farthest planet in the solar system. F
v. INSAT is an artificial satellite. T
vi. There are nine planets in the solar system. F
vii. The moon has no atmosphere. T
viii. Constellation Orion can be seen only with a telescope. F
ix. Ursa Major appears to revolve around the Pole Star. T
x. Saturn appears yellowish in colour. T
Ans. (c) A constellation
Ans. (a) Sirius
Ans. (a) we can see only that part of the moon which reflects light towards
Ans. Mercury is the planet nearest to the Sun.
Ans. A body revolving around another body is called a satellite.
Ans. Neptune is the farthest planet to the Sun.
Ans. Mercury and Venus show phases like the Moon.
Ans. Jupiter has a large number of satellites.
Ans. Aryabhatta was the first Indian satellite.
Ans. Mars and Jupiter have asteroids between them.
Ans. Moon is the only natural satellite of the Earth.
Ans. INSAT, IRS, Kalpana-1, EDUSAT
Ans. Light year is the distance travelled by light in one year.
Ans. The speed of light is about 300,000 km per second.
Ans. Ursa Major can be seen during summer time.
Ans. Mercury is the smallest planet in the solar system.
Ans. Jupiter is the biggest planet in the solar system.
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