Our Universe
Category : 1st Class
Like water and air, the Sun is also a natural source of energy.
Let us see the picture of the sun:
Importance of Sun
Negative Aspects of Sun
Which one of the following is true about the Sun?
(a) The Sun is seen at night
(b) The Sun is seen during day time
(c) The Sun is smaller than the Earth
(d) The Sun is not a natural source of energy
Answer: (b)
Explanation
Option (B) is correct. Therefore, rest of the options is incorrect.
The shape of the Sun is _____.
(a) Spherical (b) Quadrilateral
(c) Cube (d) Square
Answer: (a)
Explanation
Option (A) is correct, because the Sun is spherical in shape. Therefore, rest of the options is incorrect.
Moon is a _______body.
(a) Plastic
(b) Glass
(c) Heavenly
(d) Soil
Answer: (c)
Explanation
Option (C) is correct, because the Moon is a heavenly body. Therefore, rest of the options is incorrect.
When can you see the moon?
(a) Night
(b) Morning
(c) Midday
(d) Evening
Answer: (a)
Explanation
Option (A) is correct because, the Moon can be seen at night. Therefore, rest of the options is incorrect.
Types of Planets
1. Terrestrial: They have a surface of solid rock.
2. Gas planets: They have surfaces of liquids or airy gas.
Our solar system has 8 planets, revolving around the Sun. Name of these planets, in order of increasing distance from the Sun, are given below:
1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune
How many types the planets are?
(a) 8
(b) 2
(c) 4
(d) 5
Answer: (b)
Explanation
Option (B) is correct, because planets are divided into terrestrial and gas planets. Therefore, rest of the options is incorrect.
Which one of the following planets are closest to the Sun?
(a) Mars
(b) Earth
(c) Venus
(d) Mercury
Answer: (d)
Explanation
Option (D) is correct, because Mercury is the closest planets from the Sun. Therefore, rest of the options is incorrect.
Let us see the pictures of star:
Which one of the following is the true statement?
(a) The Sun is not a star
(b) The Sun is a star
(c) Stars can be counted
(d) Stars are not heavenly bodies,
Answer: (b)
Explanation
Option (B} is correct, because this is an established fact. Therefore, rest of the options is incorrect.
The stars are balls of__________.
(a) Solids
(b) Plastics
(c) Liquids
(d) Gases
Answer: (d)
Explanation
Option (D) is correct, because stars .are made up of gases, Therefore, rest of the options is incorrect.
Moon is moving slowly away from the earth.
The Sunlight takes nearly eight minutes to reach the earth surface.
The Sun, the Moon, the Planets and the Stars are celestial or heavenly bodies.
The Sun is the hot spherical star.
Sunlight is the ultimate source of energy.
There are 8 planets revolving around the Sun.
Stars are made up of gases.
Stars can produce heat and light of their own.
Sun is the only star to be seen during day time.
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