Class 6 Social Science Chapter 2 MCQs: Oceans and Continents

Here we are again with MCQ and short answer type questions for the 6th class social science chapter 2 – Oceans and Continents. We have carefully selected the top questions with answers for the chapter for students to practice before the exams. Do solve the MCQs after you have completed the chapter thoroughly.

30 MCQ Questions for Class 6 Social Science Chapter 2 Oceans and Continents

Question 1: Approximately how much of the Earth’s surface is covered with water?

a) One-fourth
b) One-third
c) Three-fourths
d) Two-thirds

Answer:

c) Three-fourths — Nearly three-fourths of the Earth’s surface is water.

Question 2: Why is the Earth called the ‘blue planet’?

a) Because of its atmosphere
b) Because of the oceans covering most of its surface
c) Because of its vegetation
d) Because of its icy poles

Answer:

b) Because of the oceans covering most of its surface — Seen from space, Earth looks blue due to water.

Question 3: A large continuous expanse of land is called a ___.

a) Landmass
b) Continent
c) Peninsula
d) Island

Answer:

b) Continent — Continents are large continuous landmasses.

Question 4: Which Vedic deity associated with oceans appears in the Indian Navy’s emblem?

a) Indra
b) Varuna
c) Agni
d) Surya

Answer:

b) Varuna — The Navy’s motto invokes Varuna, god of water and oceans.

Question 5: Which hemisphere has more land?

a) Northern Hemisphere
b) Southern Hemisphere
c) Both equal
d) Depends on seasons

Answer:

a) Northern Hemisphere — The Northern Hemisphere has more land area.

Question 6: Which hemisphere has more water?

a) Northern Hemisphere
b) Southern Hemisphere
c) Both equal
d) Neither

Answer:

b) Southern Hemisphere — It has a greater proportion of water.

Question 7: The Pacific Ocean is the ___ of all oceans.

a) Smallest
b) Largest
c) Deepest only
d) Most polluted

Answer:

b) Largest — The Pacific Ocean is the world’s largest ocean.

Question 8: Which is the second largest ocean?

a) Indian Ocean
b) Atlantic Ocean
c) Southern Ocean
d) Arctic Ocean

Answer:

b) Atlantic Ocean — It ranks second in size after the Pacific.

Question 9: Which is the smallest ocean in the world?

a) Southern Ocean
b) Arctic Ocean
c) Indian Ocean
d) Atlantic Ocean

Answer:

b) Arctic Ocean — It is the smallest of the five oceans.

Question 10: The Arabian Sea lies on which side of India?

a) East
b) West
c) North
d) South

Answer:

b) West — The Arabian Sea lies to the west of India.

Question 11: The Bay of Bengal lies on which side of India?

a) West
b) East
c) North
d) South

Answer:

b) East — The Bay of Bengal lies to the east of India.

Question 12: Which ocean is bounded by Asia in the north, Africa in the west, and Australia in the east?

a) Atlantic Ocean
b) Indian Ocean
c) Pacific Ocean
d) Southern Ocean

Answer:

b) Indian Ocean — It is surrounded by Asia, Africa, and Australia.

Question 13: What is a tsunami?

a) A tidal wave caused by wind
b) A huge ocean wave caused by underwater earthquakes or eruptions
c) A cyclone over the sea
d) A heavy rainfall storm

Answer:

b) A huge ocean wave caused by underwater earthquakes or eruptions — Tsunamis are powerful and destructive.

Question 14: When did the deadly Indian Ocean tsunami strike causing heavy damage in India?

a) 1999
b) 2001
c) 2004
d) 2011

Answer:

c) 2004 — On 26 December 2004, a tsunami hit Indian coasts.

Question 15: Which Indian islands were severely affected by the 2004 tsunami?

a) Lakshadweep Islands
b) Andaman and Nicobar Islands
c) Maldives
d) Sri Lanka

Answer:

b) Andaman and Nicobar Islands — They were hit badly along with Tamil Nadu and Kerala coasts.

Question 16: Which organisation in India deals with disaster management, including tsunamis?

a) National Security Guard
b) National Disaster Management Authority
c) Geological Survey of India
d) Indian Navy

Answer:

b) National Disaster Management Authority — It coordinates disaster management.

Question 17: How many continents are most commonly listed in practice?

a) Four
b) Five
c) Six
d) Seven

Answer:

d) Seven — The seven-continent model is most widely used.

Question 18: Which two continents together are sometimes called ‘Eurasia’?

a) North America and South America
b) Africa and Asia
c) Europe and Asia
d) Africa and Europe

Answer:

c) Europe and Asia — Geologists often treat them as one landmass.

Question 19: Which continent is the coldest?

a) Asia
b) Antarctica
c) Europe
d) Australia

Answer:

b) Antarctica — It is the coldest and iciest continent.

Question 20: The smallest continent in area is ___.

a) Europe
b) South America
c) Australia
d) Africa

Answer:

c) Australia — It is the smallest in size.

Question 21: Greenland is the world’s largest ___.

a) Continent
b) Peninsula
c) Island
d) Plateau

Answer:

c) Island — Greenland is the largest island in the world.

Question 22: India has more than ___ islands.

a) 500
b) 800
c) 1,300
d) 2,000

Answer:

c) 1,300 — India has over 1,300 small islands.

Question 23: The two major island groups of India are _ and _.

a) Maldives and Sri Lanka
b) Andaman & Nicobar and Lakshadweep
c) Nicobar and Maldives
d) Fiji and Lakshadweep

Answer:

b) Andaman & Nicobar and Lakshadweep — These are India’s two main island groups.

Question 24: India’s first scientific base station in Antarctica was called ___.

a) Maitri
b) Dakshin Gangotri
c) Bharati
d) Gangotri Glacier

Answer:

b) Dakshin Gangotri — Established in 1983 under the Antarctica Programme.

Question 25: Oceans are called the ‘lungs of the planet’ because they produce more than half of the world’s ___.

a) Water
b) Minerals
c) Oxygen
d) Food

Answer:

c) Oxygen — Oceans’ flora produces over half the oxygen.

Question 26: Which day is observed as World Oceans Day by the UN?

a) June 5
b) June 8
c) July 8
d) April 22

Answer:

b) June 8 — To highlight the importance of oceans in our lives.

Question 27: Which is a major source of pollution in oceans today?

a) Dust
b) Plastics
c) Sand
d) Icebergs

Answer:

b) Plastics — Millions of tonnes of plastic waste choke marine life.

Question 28: What is ‘overfishing’?

a) Fishing in deeper seas
b) Fishing during storms
c) Excessive fishing that reduces marine life
d) Catching whales

Answer:

c) Excessive fishing that reduces marine life — It causes decline of species.

Question 29: Which continent is the largest in size?

a) Asia
b) Africa
c) North America
d) Europe

Answer:

a) Asia — It is the largest of all seven continents.

Question 30: Which five inhabited continents are represented by the Olympic rings?

a) Africa, America, Antarctica, Asia, Europe
b) Africa, America, Asia, Australia, Europe
c) Asia, Africa, Australia, North America, South America
d) Asia, Africa, Antarctica, Europe, Australia

Answer:

b) Africa, America, Asia, Australia, Europe — The five Olympic rings symbolise these inhabited continents.

Class 6 Social Science Chapter 2 Fill in the Blanks with Answers – Oceans and Continents

1. Nearly ___ of the Earth’s surface is covered with water.

Answer:

three-fourths

2. The Earth appears blue from space because of the abundance of ___.

Answer:

water

3. A large continuous expanse of land is called a ___.

Answer:

continent

4. The Indian Navy’s emblem invokes ___, the Vedic deity of oceans and water.

Answer:

Varuna

5. The Northern Hemisphere has more _, while the Southern Hemisphere has more _.

Answer:

land, water

6. The five oceans of the world are the Pacific, Atlantic, Indian, Southern, and ___.

Answer:

Arctic Ocean

7. The _ Ocean is the largest of all oceans, while the _ Ocean is the smallest.

Answer:

Pacific, Arctic

8. On either side of India, the Indian Ocean branches into the _ Sea (west) and the _ of Bengal (east).

Answer:

Arabian Sea, Bay of Bengal

9. A huge ocean wave caused by an undersea earthquake or volcanic eruption is called a ___.

Answer:

tsunami

10. The powerful Indian Ocean tsunami of 26 December ___ caused massive destruction in India and 13 other countries.

Answer:

2004

11. India’s two major island groups are the _ and _.

Answer:

Andaman & Nicobar Islands, Lakshadweep Islands

12. The largest island in the world is ___.

Answer:

Greenland

13. India’s first Antarctic scientific base station, established in 1983, was called ___.

Answer:

Dakshin Gangotri

14. Oceans are called the “lungs of the planet” because they produce more than half of the world’s ___.

Answer:

oxygen

15. The United Nations observes ___ as World Oceans Day.

Answer:

June 8

True or False type Questions for Class 6 Social Science Chapter 2 Oceans and Continents

Question 1. Nearly three-fourths of the Earth’s surface is covered with water. (True/False)

Answer:

True

Question 2. The Southern Hemisphere has more land than the Northern Hemisphere. (True/False)

Answer:

False

Question 3. The Pacific Ocean is the largest ocean on Earth. (True/False)

Answer:

True

Question 4. The Arctic Ocean is larger than the Indian Ocean. (True/False)

Answer:

False

Question 5. The Arabian Sea lies to the east of India and the Bay of Bengal lies to the west. (True/False)

Answer:

False

Question 6. A tsunami can be caused by an earthquake or volcanic eruption under the ocean. (True/False)

Answer:

True

Question 7. Greenland is the largest island in the world. (True/False)

Answer:

True

Question 8. India has fewer than 500 islands in total. (True/False)

Answer:

False

Question 9. Oceans are called the “lungs of the planet” because they produce more than half of the world’s oxygen. (True/False)

Answer:

True

Question 10. World Oceans Day is observed every year on June 8. (True/False)

Answer:

True