Question 1. Who amongst the following was the first to state that the Earth was spherical?
Question 2. In the form of organism, the Scientific name of Earth is________.
(B) Green Planet
Question 3. Chemical element found in abundance in the Earth’s crust is________.
Question 4. Time taken by light emitted from Sun to reach Earth is______.
(A) 16 minutes
(B) 8 minutes
(C) 1 minute
(D) 2 minutes
Question 5. Which one of the following Stars is nearest to the Earth?
(C) Alpha Centauri
Question 6. Which of the following planet is nearest to Earth?
Question 7. The planet nearest to the Earth is______.
Question 8. In completing one revolution of the Sun, Earth takes approximately_________.
(A) 365.75 days
(B) 365.5 days
(C) 365.25 days
(D) 365 days
Question 9. At which average speed the Earth revolve around the Sun?
(A) 50 km/sec
(B) 40 km/sec
(C) 30 km/sec
(D) 20 km/sec
Question 10. Approximately, how much distance per minute does Earth cover while revolving?
(A) 28 km
(B) 69 km
(C) 59 km
(D) 49 km
Question 11. The equatorial circumference of the Earth is nearly________.
(A) 50,000 km
(B) 50,000 km
(C) 40,000 km
(D) 31,000 km
Question 12. Earth’s axis is tilted at an angle of_______.
(A) 42½ º
(B) 33½ º
(D) 23½ º
Question 13. The Earth’s axis of rotation (polar axis) is always inclined at an angle of_________.
(A) 23.5º from the elliptic axis
(B) 24.5º from the elliptic axis
(C) 23.1º from the elliptic axis
(D) 23.0º from the elliptic axis
Question 14. The causes of Day and Night is_______.
(A) Moon’s rotation
(B) Tilt of Earth’s axis
(C) Rotation of Earth on its axis
Question 15. When the length of day and night is equal the Sunrays falls perpendicular at__________.
(A) Tropic of cancer
(B) South pole
(D) North pole
Question 16. Seasonal changes is caused by which one of special characteristic of Earth’s motion?
(A) Revolution around Sun
(B) Axial tilt by 23½ degree
(C) Axial tilt by 23½ degree
(D) Rotation on its axis
Question 17. What causes the change of Seasons?
(A) Earth’s rotation and inclination of its axis
(B) Earth’s revolution and inclination of its axis
(C) Earth’s revolution
(D) Earth’s rotation and revolution
Question 18. Consider one special point at the Earth’s surface (e.g., City Delhi) its temperature at noon (e.g., 12 O’ clock) will be higher in Summer in comparison to winter because_________.
(A) In winters the Earth’s axis becomes more inclined towards Sun
(B) The vaporization of water happen only in winter due to environmental precipitation
(C) In winter the Sun rays falling on the Earth bends more towards the Earth’s surface in comparison to the summer
(D) Earth is much closer to Sun in Summer in comparison to winter
Question 19. If the distance between Sun and Earth is reduced by quarter to present distance, then probability of which one will increase________.
(A) Earth will fly into space
(B) The duration of our year will be decrease
(C) Earth shall be burned
(D) Earth would fall into Sun
Question 20. The possibility of desert on Earth is more_______.
(A) Nearby 70º latitude
(B) Nearby 50º latitude
(C) Nearby 23º latitude
(D) Nearby 0º latitude
Question 21. A ball thrown outside from an artificial satellite revolving round the Earth will________.
(A) Revolve round the Earth in the same orbit with the same time period as satellite
(B) Fall on the Earth
(C) Go to the Moon
(D) Go to the Sun
Question 22. The Moons of the Planet Jupiter were discovered by_________.
Question 23. Among the following which planet takes maximum time for one revolution around the Sun?
Question 24. Which one of the following is heaviest planet of our Solar System?
Question 25. Which one of the following conditions is most relevant for the presence of life on Mars?
(A) Occurrence of ozone
(B) Occurrence of ice cap and frozen water
(C) Thermal conditions
(D) Atmospheric compositon
Question 26. The duration of its day and tilt of its axis are almost identical to those of the Earth. This is true of________.
Question 27. Phoenix Mars Lander landed on the surface of Mars on_______.
(A) 26 May, 2008
(B) 26 June, 2008
(C) 27 June, 2008
(D) 27 May, 2008
Question 28. Which one of the following may have alien life because of a very conductive environment to life?
(A) Moon-The Earth’s Moon
(B) Europa-The Jupiter’s Moon
Question 29. World Earth Day is celebrated on_______.
(A) 7 March
(B) 7 April
(C) 22 March
(D) 22 April
Question 30. In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following?