Well structured WBBSE 9 Geography MCQ Questions Chapter 1 Earth as a Planet can serve as a valuable review tool before exams.
Earth as a Planet Class 9 WBBSE MCQ Questions
Multiple Choice Questions & Answers
Question 1.
The ‘Blue Planet’ is another name for- …………….
A. Earth
B. Saturn
C. Venus
D. Mars
Answer:
A. Earth
Question 2.
The planet nearest to the earth is- …………….
A. Mercury
B. Venus
C. Mars
D. Jupiter
Answer:
B. Venus
Question 3.
The earth’s equatorial diameter is- …………….
A. 12,712 km
B. 12,745 km
C. 12,757 km
D. 12,500 km
Answer:
C. 12,757 km
Question 4.
The earth’s polar diameter is- …………….
A. 12,400 km
B. 12,714 km
C. 12,700 km
D. 12,720 km
Answer:
B. 12,714 km
Question 5.
“The earth revolves around the sun.” – This was first stated by-…………….
A. Galileo
B. Copernicus
C. Aryabhatta
D. Varahamihir
Answer:
C. Aryabhatta
Question 6.
The planet closest to the sun is-…………….
A. Mercury
B. Venus
C. Pluto
D. Neptune
Answer:
A. Mercury
Question 7.
“The earth revolves around the sun and on its own axis.” The first person to say this was-…………….
A. Copernicus
B. Aryabhatta
C. Galileo
D. Newton
Answer:
A. Copernicus
Question 8.
The average distance of the earth from the sun is-…………….
A. 140 million km
B. 150 million km
C. 160 million km
D. 120 million km
Answer:
B. 150 million km
Question 9.
The highest point on the surface of the earth is-…………….
A. Mount Everest
B. Pamir Plateau
C. Tibetan Plateau
D. North Pole region
Answer:
A. Mount Everest
Question 10.
The deepest known point on the earth is-…………….
A. Mariana Trench
B. Sunda Trench
C. St. Louis Trench
D. South Pole region
Answer:
A. Mariana Trench
Question 11.
The difference between the earth’s polar diameter and the equatorial diameter is -…………….
A. 40 km
B. 42 km
C. 43km
D. 45 km
Answer:
C. 43km
Question 12.
An example of a dwarf planet is- …………….
A. Pluto
B. Mercury
C. Mars
D. Neptune
Answer:
A. Pluto
Question 13.
The Bedford Canal Experiment was carried out by-…………….
A. Wallace
B. Torricelli
C. Foucault
D. Galileo
Answer:
A. Wallace
Question 14.
The average radius of the earth is-…………….
A. 6,300 km
B. 6,371 km
C. 6,500 km
D. 6,600 km
Answer:
B. 6,371 km
Question 15.
In 1797, scientist Henry Cavendish determined the earth’s-…………….
A. density
B. weight
C. circumference
D. diameter
Answer:
B. weight
Question 16.
In terms of distance from the sun, the earth is-…………….
A. second
B. third
C. fourth
D. fifth
Answer:
B. third
Question 17.
The average circumference of the earth is -…………….
A. 40,400 km
B. 40,075 km
C. 40,500 km
D. 40,200 km
Answer:
B. 40,075 km
Question 18.
The sun is a-…………….
A. planet
B. satellite
C. star
D. galaxy
Answer:
C. star
Question 19.
The sun is heavier than the earth by-…………….
A. 0.35 million times
B. 0.33 million times
C. 0.325 million times
D. 0.32 million times
Answer:
B. 0.33 million times
Question 20.
The number of Jovian planets in the solar system is -…………….
A. 7
B. 8
C. 9
D. 6
Answer:
B. 8
Question 21.
The planet which has rings around it is-…………….
A. Saturn
B. Earth
C. Mercury
D. Venus
Answer:
A. Saturn
Question 22.
The name of one satellite of Saturn is -…………….
A. Moon
B. Titan
C. Phobos
D. Haumea
Answer:
B. Titan
Question 23.
The total number of components in a GPS is-…………….
A. 3
B. 4
C. 6
C. 5
Answer:
A. 3
Question 24.
In ancient times, man believed that the earth was a-…………….
A. sphere
B. oblate spheroid
C. plane
D. square
Answer:
C. plane
Question 25.
The ancient Mesopotamians believed that the earth was -…………….
A. floating in space
B. floating on an ocean
C. a single entity standing on its own
D. is not floating anywhere
Answer:
B. floating on an ocean
Question 26.
“The earth is round.”- This statement was first made by-…………….
A. Plato
B. Pythagoras
C. Aristotle
D. Strabo
Answer:
B. Pythagoras
Question 27.
Pythagoras was a-…………….
A. Greek philosopher
B. Roman philosopher
C. British philosopher
D. Portuguese philosopher
Answer:
A. Greek philosopher
Question 28.
The first empirical proof that the earth is round was given by-…………….
A. Pythagoras
B. Magellan
C. Columbus
D. Aristotle
Answer:
B. Magellan
Question 29.
A proof that the earth is round is-…………….
A. the view from the mast of a ship
B. travelling around the world in a ship
C. photographs taken from space
D. the view from the top of Mt. Everest
Answer:
C. photographs taken from space
Question 30.
The person to calculate the earth’s circumference on the basis of the difference in the angle of incidence of sun rays was-…………….
4. Strabo
B. Aristotle
C. Eratosthenes
D. Plato
Answer:
C. Eratosthenes
Question 31.
The Old Bedford River is in-…………….
A. England
B. France
C. Germany
D. Italy
Answer:
A. England
Question 32.
The earth can be called an oblate spheroid because-…………….
A. the earth’s surface is elevated by 15m at the North Pole
B. there is more water at the equatorial region
C. the highest point on earth is Mt. Everest
D. the poles are flattened and the equatorial region is bulging out
Answer:
D. the poles are flattened and the equatorial region is bulging out
Question 33.
The earth’s gravitational force is the greatest-…………….
A. at the equatorial region
B. in the ocean beds
C. on mountain peaks
D. at the poles
Answer:
D. at the poles
Question 34.
The pendulum clock experiment was conducted by-…………….
A. Pythagoras
B. Eratosthenes
C. Jean Richer
D. Galileo
Answer:
C. Jean Richer
Question 35.
The word ‘geoid’ means-…………….
A. oblate spheroid
B. perfect sphere
C. flattened
D. like the earth
Answer:
D. like the earth
Question 36.
The shape of Mercury and Venus is-…………….
A. oblate spheroid
B. perfect sphere
C. geoid
D. flattened
Answer:
B. perfect sphere
Question 37.
To complete one revolution around the sun, Venus takes-…………….
A. 365 days
B. 24 hours
C. 243 days
C. 27 days
Answer:
C. 243 days
Question 38.
One of the believers in the earth-centric model of the universe was-…………….
A. Copernicus
B. Aristotle
C. Bruno
D. Brahe
Answer:
B. Aristotle
Question 39.
The telescope was invented by-…………….
A. Kepler
B. Galileo Galilei
C. Newton
D. Edmond Halley
Answer:
B.Galileo Galilei
Question 40.
If we move 111.3 kilometre from the equator towards the poles, the angle of incidence of sun’s rays will increase by-…………….
A. 1° 30‘
B. 2° 30‘
C. 1°
D. 1° 02‘
Answer:
C. 1°
Question 41.
To complete one revolution around the earth, the moon takes-…………….
4. 36 days
B. 20 days
C. 27 days
D. 27 \(\frac{1}{3}\) days
Answer:
D. 27 \(\frac{1}{3}\) days
Question 42.
The latitudinal coordinate of Paris is-…………….
A. 26° 32′ N
B. 47° N
C. 49° N
D. 75° 03′ N
Answer:
C. 49° N
Question 43.
The Cayenne islands are in-…………….
A. North America
B. South America
C. Asia
D. Austria
Answer:
B. South America
Question 44.
The length of the earth’s orbit is -…………….
A. 9.6 million km
B. 11 million km
D. 14.70 million km
D. 15.20 million km
Answer:
A. 9.6 million km
Question 45.
The deepest point in the Mariana Trench has a depth of-…………….
A. 10,053 m
B. 11,035 m
C. 11,350 m
D. 10,994 m
Answer:
B. 11,035 m
Question 46.
The earth’s centrifugal force is greatest at the-…………….
A. equatorial region
B. tropics
C. polar regions
D. frigid zone
Answer:
B. tropics
Question 47.
To determine the location of any place on earth using GPS, the number of satellites launched in space by the USA is-…………….
A. 23
B. 24
C. 25
D. 31
Answer:
A. 23
Question 48.
The largest planet in the solar system is-…………….
A. Mercury
B. Venus
C. Jupiter
D. Mars
Answer:
C. Jupiter
Question 49.
During a lunar eclipse, the shadow of the earth on the moon looks-…………….
A. straight
B. curved
C. circular
D. rectangular
Answer:
C. circular
Question 50.
As we go higher up from the surface of the earth, the line of horizon appears-…………….
A. shorter
B. longer
C. stays the same
D. none of the above
Answer:
B. longer
Question 51.
At present, the number of known planets in the solar system is-…………….
A. 3
B. 5
C. 7
D. 8
Answer:
D. 8
Question 52.
Eratosthenes was-…………….
A. a Roman philosopher
B. a Greek philosopher
C. an Egyptian philosopher
D. an Indian philosopher
Answer:
B. a Greek philosopher
Question 53.
At present, the number of dwarf planets in the solar system is-…………….
A. 5
C. 6
B. 4
D. 3
Answer:
A. 5
Fill in the blanks
1. The first person to calculate the circumference of the earth was …………….
Answer: Eratosthenes
2. In terms of size, the earth stands among …………… the planets of the solar system.
Answer: fifth
3. The sun is …………… times larger in size than the earth.
Answer: 1.3 million
4. The earth’s equatorial diameter is ……………..than its polar diameter.
Answer: greater
5. The only satellite of the earth is the……………..
Answer: moon
6. The earth is divided equally into ……………..lines of longitude.
Answer: 360
7. The moon is at a distance of about ……………..km from the earth.
Answer: 3,84,400 km
8. The sun and the heavenly objects that revolve around it are together known as the ……………..
Answer: solar system
9. The satellites used for GPS are generally at a distance of ……………..km from the earth’s surface.
Answer: 20,200
10. The person who first succeeded in estimating the volume of the earth was……………..
Answer: Aristotle
11. One stadia is equal to …………….. metre.
Answer: 185
12. From space, the earth appears …………….. in colour.
Answer: blue
13. The earth is an …………….. spheroid.
Answer: oblate
14. Magellan started his expedition from the city of …………….. in Spain.
Answer: Seville
15. …………….. was the first person to observe that the earth was round after observing the relative position of some stars.
Answer: Aristotle
16. …………….. estimated the circumference of the earth on the basis of the angle of incidence of the sun’s rays.
Answer: Eratosthenes
17. The Bedford Canal Experiment proves that the earth is……………..
Answer: spherical
18. The …………….. star is visible from any point in the Northern Hemisphere.
Answer: North/ Pole
19. The earth’s North and South Poles are……………..
Answer: slightly flattened
20. The earth’s equatorial diameter is ……………..km.
Answer: 12,757
21. The earth’s polar diameter is ……………..km.
Answer: 12,714
22. In the year…………….., Jean Richard conducted the pendulum experiment.
Answer: 1671
State True or False
1. The moon does not have any light of its own.
Answer: True
2. The shape of the earth is geoid.
Answer: True
3. Saturn is called the ‘King of the Planets’.
Answer: False
4. The average diameter of the earth is 12,800 kilometre.
Answer: False
5. The earth, along with other planets, moves around the sun.
Answer: True
6. The earth is the only planet in the solar system known to support life.
Answer: True
7. Stars do not have light of their own.
Answer: False
8. The earth’s orbit is elliptical in shape.
Answer: True
9. If the earth was a flat plane, sunrise and sunset would occur at the same time at every place on earth.
Answer: True
10. Artificial satellites are used to gather information for use by GPS.
Answer: True
11. The main control system of GPS is in the United States of America.
Answer: True
12. According to Eratosthenes, the circumference of the earth is 2,50,000 stadia.
Answer: True
13. Eris is a planet.
Answer: False
14. Planets are smaller than dwarf planets.
Answer: False
15. The weight of any object is always lesser at the poles.
Answer: False
16. The shape of the earth is an oblate spheroid because of centrifugal force.
Answer: True
17. The Southern Hemisphere has a greater percentage of landmass.
Answer: False
18. The shape of the earth is known as geoid.
Answer: True
19. Mercury’s shape is like that of the earth.
Answer: False
20. The earth’s circumference was calculated by Ptolemy.
Answer: False
21. The average circumference of the earth is about 40,000 km.
Answer: True
22. With the help of GPS, we have come to know the exact shape of the earth.
Answer: True
23. The gravitational force acting on the city of Paris is stronger than that at the Cayenne Islands.
Answer: True
24. The earth’s orbit is 960 million km and its shape is circular.
Answer: False
25. Saturn is the largest planet in the solar system.
Answer: False
26. The earth’s area is determined by using the formula 4πR.
Answer: False
27. The Pole Star can be seen even from the Southern Hemisphere.
Answer: False
28. Jupiter has two satellites.
Answer: False
29. The dwarf planet Eris has 10 satellites.
Answer: False
30. The Pole Star is located at an angle of 90° to the Equator.
Answer: False
31. The gravitational force acting on the earth is the same at all latitudes.
Answer: False
32. It is because of the presence of the atmosphere that only the white ray from the sun reaches the earth’s surface.
Answer: True
Match the columns
| Column I | Column II |
| A. Dwarf planet | A. Earth |
| B. Ringed planet | B. Jupiter |
| C. King of planets | C. Pluto |
| D. Blue Planet | D. Saturn |
Answer:
1-C, 2-D, 3-B, 4-A
| Column I | Column II |
| 1. Earth’s equatorial diameter | A. 6,371 km |
| 2. Earth’s polar diameter | B. 12,714 km |
| 3. Earth’s average circumference | C. 12,757 km |
| 4. Earth’s radius | D. 40,000 km |
Answer:
1-C, 2-B, 3-D, 4-A
Crossword
Question 1.
Clues:
Down:
1. The seventh planet of the solar system.
2. He said that the earth revolves around the sun.
Across:
3 . He first measured the diameter of the earth.
4. Largest planet of the solar system.
5. Bedford level experiment shows that the earth is
Answer:
Down:
1. URANUS
2. COPERNICUS
Across:
3. ERATOSTHENES
4. JUPITER
5. SPHERICAL
Question 2.
Clues:
Down:
1. The eighth planet of the solar system.
4. A satellite of Saturn.
Across:
2 . The ‘blue planet’ of the solar system.
3. A man-made object that orbits the sun, moon, planets and helps in communication.
Answer:
Down:
1. NEPTUNE
4. TITAN
Across:
2. EARTH
3. SATELLITE