Find Below Extra Questions for NCERT Class 6 Social Science Chapter 2 Oceans and Continents:
A. Multiple-Choice Questions (MCQs):
Choose the correct option
1. How many oceans are there on Earth?
a. 3
b. 5
c. 7
d. 6
2. Name the largest ocean on Earth?
a. Atlantic Ocean
b. Indian Ocean
c. Pacific Ocean
d. Arctic Ocean
3. Name the continent which is completely covered by ice?
a. Asia
b. Antarctica
c. Australia
d. Europe
4. Which is the smallest continent?
a. Africa
b. Europe
c. Australia
d. South America
5. Which ocean is located between Africa, Asia, and Australia?
a. Atlantic Ocean
b. Indian Ocean
c. Arctic Ocean
d. Southern Ocean
6. How many continents are there on Earth?
a. 5
b. 6
c. 7
d. 8
7. Which continent is called the “Land of Kangaroos”?
a. Africa
b. Australia
c. North America
d. Europe
8. What percentage of Earth’s surface is covered by oceans?
a. About 50%
b. About 60%
c. About 70%
d. About 80%
9. Which continent is attached to Asia and often viewed as part of the same landmass?
a. Europe
b. South America
c. Antarctica
d. Australia
10. The ocean that surrounds Antarctica is called the:
a. Atlantic Ocean
b. Arctic Ocean
c. Southern Ocean
d. Indian Ocean
11. Which is the coldest ocean?
a. Pacific Ocean
b. Indian Ocean
c. Arctic Ocean
d. Atlantic Ocean
12. What is the most important role of oceans in regulating climate?
a. Absorbing carbon dioxide and heat
b. Producing electricity
c. Creating deserts
d. Preventing earthquakes
13. Which of the following continents is the second-largest in size?
a. Africa
b. Asia
c. North America
d. Europe
14. What is the ocean between North America and Europe called?
a. Indian Ocean
b. Pacific Ocean
c. Atlantic Ocean
d. Southern Ocean
15. What is the role of continents in supporting life?
a. They provide land for agriculture, settlements, and biodiversity
b. They store most of the Earth’s water
c. They prevent climate change
d. They produce saltwater for the oceans
Answers:
1. b. 5
2. c. Pacific Ocean
3. b. Antarctica
4. c. Australia
5. b. Indian Ocean
6. c. 7
7. b. Australia
8. c. About 70%
9. a. Europe
10. c. Southern Ocean
11. c. Arctic Ocean
12. a. Absorbing carbon dioxide and heat
13. a. Africa
14. c. Atlantic Ocean
15. a. They provide land for agriculture, settlements, and biodiversity
B. Fill in the blanks with words from the box:
| Africa | Northern | Pacific | tsunami | Sahara |
| Southern | Arctic | Indian | Southern | eruptions |
1. The _______ Ocean is the deepest ocean in the world, while the _______ Ocean is the smallest.
2. The continent of _______ is home to the largest desert in the world, called the _______ Desert.
3. The _______ Ocean lies between Africa and Australia, while the _______ Ocean surrounds Antarctica.
4. The _______ Hemisphere has more land area, while the _______ Hemisphere has more water.
5. A is________ caused by underwater earthquakes or volcanic _______ that displace large amounts of water.
Answer:
1. The Pacific Ocean is the deepest ocean in the world, while the Arctic Ocean is the smallest.
2. The continent of Africa is home to the largest desert in the world, called the Sahara Desert.
3. The Indian Ocean lies between Africa and Australia, while the Southern Ocean surrounds Antarctica.
4. The Northern Hemisphere has more land area, while the Southern Hemisphere has more water.
5. A Tsunami is caused by underwater earthquakes or volcanic eruptions that displace large amounts of water.
C. Match and pair the words in Column A with those of Column B:
| A | B |
| The only ocean named after a country | Mariana Trench |
| The deepest point in the ocean | Gulf Stream |
| The continent that moves the fastest due to plate tectonics | Antarctica |
| The ocean current that influences European climate | Indian Ocean |
| The only continent with no permanent human settlements | Australia |
Answer:
| A | B |
| The only ocean named after a country | Indian Ocean |
| The deepest point in the ocean | Mariana Trench |
| The continent that moves the fastest due to plate tectonics | Australia |
| The ocean current that influences European climate | Gulf Stream |
| The only continent with no permanent human settlements | Antarctica |
D. State whether the following statements are TRUE or FALSE:
1. Europe is the only continent without a desert.
2. The deepest point on Earth, the Mariana Trench, is deeper than Mount Everest is tall.
3. Antarctica is the only continent where no native human population has ever lived.
4. Madagascar is the smallest island continent in the world.
5. The continents have always remained in the same position since the Earth was formed.
Answers:
1. True
2. True
3. True
4. False – Australia is the smallest continent, while Madagascar is the fourth largest island.
5. False – Continents drift due to plate tectonics.
E. Short Answer Type Questions
1. Why is the earth called the ‘blue planet’?
Answer:
The earth is called the ‘blue planet’ because almost three-fourths of the earth’s surface is covered with water so it appears blue when viewed form space.
2. Who is Varuna?
Answer:
Varuna is the deity associated with the oceans, the sky and water.
3. Why is sea water unfit for consumption by most land animals including human beings?
Answer:
Sea water is unfit for consumption by land animals because it is salty.
4. Where can one find fresh water?
Answer:
Fresh water is scarce. It is found in glaciers, lakes, rivers, in the atmosphere and also underground.
5. Are there physical boundaries between the five oceans on earth?
Answer:
No, there are no physical boundaries which separate the oceans. The sea water flows freely across different oceans and help to sustain a rich variety of marine life.
6. Describe the marine flora.
Answer:
The marine flora includes tiny plants called algae and all kinds of sea weeds.
7. Describe the fauna found in oceans and seas?
Answer:
Thousands of varieties of colourful fish, dolphins, whales, turtles, corals and exotic sea creatures comprise the fauna in oceans and seas.
8. What brings rain to the continents?
Answer:
Large masses of clouds bring rain to the continents.
9. Where do the monsoon rains originate?
Answer:
The monsoon rains originate in the ocean.
10. How do the monsoon rains help us?
Answer:
Monsoon rains cool our land and support agriculture in India.
11. Name a natural disaster that originates in the ocean.
Answer:
A Tsunami is a natural disaster which originates in the ocean.
12. What is a tsunami?
Answer:
A tsunami is a large wave caused by a strong earthquake or a volcanic eruption on the ocean floor.
13. Which areas in India were most affected by the tsunami of 2004?
Answer:
In India, The Andaman and Nicobar Islands as well as the coasts of Tamil Nadu and Kerala suffered extensive damage and loss of life.
14. Which list of continents is most widely adopted and used?
Answer:
The following list of seven continents is the most widely adopted and used:
Africa, Antarctica, Asia, Australia, Europe, North America, and South America.
15. Which is the largest island in the world?
Answer:
Greenland is the largest island in the world.
16. Name two major group of Indian islands.
Answer:
The Andaman and Nicobar Islands in the Bay of Bengal and the Lakshadweep islands in the Arabian sea are two major groups of Indian islands.
17. What is the name of the first Indian scientific base station established in Antarctica called?
Answer:
The first Indian scientific base station established in Antarctica is known as “Dakshin Gangotri”.
18. What kind of research is conducted by Indian scientists in Antarctica?
Answer:
About forty teams of Indian scientists have conducted research on the evolution of climate and environment.
19. Which day has been designated as ‘World Oceans Day’ by the United Nations?
Answer:
June 8th has been designated as ‘World Oceans Day’ by the United Nations.
20. Name one reason for the decline in marine life.
Answer:
One reason for the decline in marine life is overfishing.
Hope our solutions to Extra Questions for NCERT Class 6 Social Science Chapter 2 Oceans and Continents were beneficial for your revision! Good luck!
