1. Our Earth (Part -B)
*Multiple Choice Questions:
1. Copernicus proposed was proposed ............ ( )
A) Geo centric theory
B) Continental Drift Theory
C) Sun Centered theory
D) None of these
2. Carl Sagan, a scientist photo taken from the space is known as ...... ( )
A) Pale Blue Dot
B) Pale Yellow Dot
C) Pale Red Dot
D) Pale Orange Dot
3. Earth's closest point from the Sun is........ Km. ( )
A) 152 million kms
B) 125 million kms
C) 147 million kms
D) 174 million kms
4. The radius of the Earth is...... ( )
A) 5000 kms
B) 7000 kms
C) 6000 kms
D) 8000 kms
5.Who was proposed continental drift theory? ( )
A) Alfred Wegener
B) Newton
C) Alexander
D) Darwin
6. The Indian standard time is ........( )
A) 12 hours before Greenwich time
B) 12 hours after Greenwich time
C) 5½ hours before Greenwich time
D) 5½ hours after Greenwich time
7. The Latitudinal value of equator is .......... ( )
A) 90° latitude
B) 0° latitude
C) 360° latitude
D) 180° latitude
8. When it is 12.00 noon in Greenwich (0°) what is the time in India? ( )
A) 4.30 p.m
B) 5.00 p.m
C) 5.30 p.m
D) 6.00 p.m
9. .......... is the top most layer of the Earth ( )
A) Crust
B) Core
C) Mantle
D) Centre
10. The Sanskrit word for the 'earth' is ........ ( )
A) Bhoomi
B) Dharani
C) Pruthvi
D) All the above
11. The longitude directly opposite to 0° longitude is called the.......... ( )
A) Equator
B) Prime meridian
C) Anti-meridian
D) 180° North latitude
12. ..............was proposed Geocentric theory ( )
A) Galelio
B) Ptolemy
C) Copernicus
D) Aryabhatta
13. The following is situated in the south hemisphere ( )
A) Greenland
B) Madagascar
C) Eurasia
D) Madagascar and Eurasia
14. Silicates are present in...... ( )
A) Mantle
B) Core
C) Crust
D) None
15. ......... is the longest among all latitudes ( )
A) Tropic of cancer
B) Tropic of Capricorn
C) Prime meridian
D) Equator
16. The shape of Earth's orbit is ...... ( )
A) A circular path
B) An enlonged oval path
C) A scaled oval path
D) All these
17. The environmental crisis means crisis means the destruction of.......( )
A) Forests
B) Rivers
C) Hills
D) All these
18. The super continent is..........( )
A) Panthalsa
B) Pangaea
C) Tethys
D) Laurensia
19. ......is network latitudes and longitudes ( )
A) Atlas
B) Map
C) Grid
D) Equator
20. .............. billion years ago univers started. ( )
A) 2 lakh
B) 4½
C) 13.7
D) 152
21. ............is heavy substance most prevalent in core. ( )
A) Rocks
B) Silicates
C) Gold
D) Iron
22. ........... longitude is the standard meridian of India. ( )
A) 82° 30′ East longitude
B) 82° 30′ West longitude
C) 82° 30° West latitude
D) 82° 30′ East latitude
23.The earth travels around the sun at a speed of .......... kilometres per hour ( )
1,07,200
2,07,200
7,02,200
7,02,100
24. ........... Is the cause of the formation of a seasons on earth. ( )
A) Rotation of the earth
B) Revolution of the earth
C) Tilt of the axis
Dd) Shape of Earth
25. The volume of the earth's crust is ....... ( )
A) 83%
B) 16%
C) 1%
D) 23%
26. The super continent of Pangaea broke into ...... ( )
A) Laurensia
B) Gondwana
C) Both A & B
D) None of these
27. The temperature at the centre of the earth would be ....... ( )
A) 5000°C
B) 4000°C
C) 9000°C
D) 6000°C
28. The difference between the earth's closest point from the sun is called........ ( )
A) Appehelian
B) Perihelion
C) Orbit
D) Axis
29. How much time does the Earth takes to move 1° longitude? ( )
A) 24 hours
B) One hour
C) 4 minutes
D) 4 hours
30. Which of the following came into existence first? ( )
A) Human beings
B) Plants
C) Animals
D) Ocean species
