Exercises Questions with Answers

Exercises

A. Choose the correct answer

1. Which of the following is the smallest ocean on Earth?

a. The Pacific Ocean

b. The Indian Ocean

c. The Atlantic Ocean

d. The Arctic Ocean

Answer: d. The Arctic Ocean

2. The Malacca Strait connects

a. The Pacific and Atlantic Oceans

b. The Pacific and Southern Oceans

c. The Pacific and Indian Oceans

d. The Pacific and Arctic Oceans

Answer: c. The Pacific and Indian Oceans

3. Which of the following oceans is the busiest ocean?

a. The Pacific Ocean

b. The Atlantic Ocean

c. The Indian Ocean

d. The Arctic Ocean

Answer: b. The Atlantic Ocean

4. The frozen continent is

a. North America

b. Australia

c. Antarctica

d. Asia

Answer: c. Antarctica

5. A narrow strip of water that connects two large water bodies

a. A Strait

b. An Isthmus

c. An Island

d. A Trench

Answer: a. A Strait

B. Fill in the blanks.

1. The world’s largest continent is Asia.

2. Chotanagpur plateau is the mineral rich plateau in India

3. The largest ocean is pacific ocean.

4. Deltas are third order landforms.

5. The Island continent is Australia.

C. Circle the odd one out.

1. Africa, Europe, Australia, Sri Lanka

Africa, Europe, Australia, Sri Lanka

2. The Arctic Ocean, the Mediterranean Sea, the Indian Ocean, the Atlantic Ocean

The Arctic Ocean, the Mediterranean Sea, the Indian Ocean, the Atlantic Ocean

3. Plateau, Valley, Plain, Mountain

Plateau, Valley, Plain, Mountain

4. The Bay of Bengal, the Bering Sea, the China Sea, the Tasman Sea.

The Bay of Bengal, the Bering Sea, the China Sea, the Tasman Sea.

5. The Andes, the Rockies, the Everest, the Himalayas

The Andes, the Rockies, the Everest, the Himalayas

D. Match the following

1. The South Sandwich Trench-   a) The Atlantic Ocean

2. The Milwaukee Trench-           b) The Southern Ocean

3. The Mariana Trench-               c) The Indian Ocean

4. The Eurasian basin-                 d) The Pacific Ocean

5. The Java Trench-                     e) The Arctic Ocean

Answer: 

1. The South Sandwich Trench  -     b) The Southern Ocean

2. The Milwaukee Trench        -      a) The Atlantic Ocean

3. The Mariana Trench           -       d) The Pacific Ocean

4. The Eurasian basin             -       e) The Arctic Ocean

5. The Java Trench               -        c) The Indian Ocean

E. i) Consider the following statements.

1. Plains are formed by rivers.

2. The ‘South Sandwich Trench’ is found in the Indian Ocean.

3. Plateaus have steep slopes.

Choose the correct answer using the codes given below.

a. 1 and 3

b. 2 and 3

c. 1, 2 and 3

d. 2 only

Answer: a. 1 and 3

ii. Consider the following statements.

Statement I: Mountains are second order landforms.

Statement II: The Mariana Trench is the deepest trench in the world.

Which of the statement(s) is/are true?

a. I is true; II is wrong

b. I is wrong; II is true

c. Both the statements are true

d. Statements I and II are wrong.

Answer: c. Both the statements are true

F. Answer in a word

1. Which is the highest plateau in the world?

Tibetan Plateau

2. Name a second order landform.

Mountains, Plateau and Plains

3. Which ocean is named after a country?

Indian Ocean

4. Name the island located in the Arabian Sea.

Lakshadweep

5. What is the deepest part of the ocean called as?

Trench

G. Answer in brief.

1. What is a continent?

• Continents and oceans are grouped as first order landforms.

• The vast land masses on Earth are called Continents

• There are seven continents.

• They are Asia, Africa, North America, South America, Antarctica, Europe and Australia.

2. Name the continents which surround the Atlantic Ocean.

• The Caribbean Sea, the Gulf of Mexico, the North Sea, the Gulf of Guinea and the Mediterranean Sea are important marginal seas of the Atlantic Ocean.

• St. Helena, Newfoundland, Iceland and Falkland are some of the islands found in this ocean

3. What are oceans?

• Oceans are vast expanse of water.

• Seas are water bodies partially or fully enclosed by land.

4. List out the names of continents according to their size

Asia, Africa, North America, South America, Antarctica, Europe, and Australia.

5. Name the oceans which surround North America and South America

The Atlantic Ocean

H. Distinguish between

1. A Mountain and a Plateau

Mountain

• A landform that rises 600 metre above its surroundings and has steep slopes is called a mountain.

• Mountains are found in isolation or in groups. If the mountains extend for a larger area continuously, it is called a mountain range.

• These ranges stretch for hundreds or thousands of kilometre.

• The Himalayas of Asia, the Rocky Mountains of North America

Plateau

• Plateaus are the elevated portions of the Earth that have flat surfaces bounded by steep slopes.

• The elevation of plateaus may be a few hundred metre or several thousand metre.

• Tibetan Plateau is the highest plateau in the world. So, it is called as the ‘Roof of the world’.

• The flat topped part of the plateau is called Tableland. The plateaus are generally rich in minerals.

• The Chotanagpur Plateau, Deccan Plateau of India

 2. An ocean and a sea

Ocean

• The Earth looks blue when we see it from space.

• This is because, two-thirds of it is covered by water

• The water is found in oceans and seas. Oceans are vast expanse of water. There are five oceans located on the Earth’s surface.

• They are the Pacific, Atlantic, Indian, Southern and Arctic Ocean.

• Among these oceans, the Pacific Ocean is the largest and

• the Arctic Ocean is the smallest.

Sea

• Seas are water bodies partially or fully enclosed by land.

• Pacific Ocean - The Bering Sea, the China Sea, the Sea of Japan, Tasman Sea and the Philippine Sea

• The Atlantic Ocean - The Caribbean Sea, the Gulf of Mexico, the North Sea, the Gulf of Guinea and the Mediterranean Sea

• Indian Ocean - The Bay of Bengal, the Arabian Sea, the Persian Gulf and the Red

• The Southern Ocean - The Ross Sea, the Weddell Sea

• The Artie Ocean - The Norwegian Sea, the Greenland Sea, the East Siberian Sea and the Barents Sea

I. Answer the following questions in detail

1. Write down the classification of land forms.

 The classification of land forms,

First order Landform - Continents, Oceans

Second order Landform - Mountains, Plateaus, Plains

Third order Landform - Valleys, Beaches, Sand Dunes

2. Write a note on plateaus.

• Plateaus are the elevated portions of the Earth that have flat surfaces bounded by steep slopes.

• The elevation of plateaus may be a few hundred metres or several thousand metres.

• Tibetan Plateau is the highest plateau in the world. So, it is called as the ‘Roof of the world’.

• The flat topped part of the plateau is called Tableland. The plateaus are generally rich in minerals.

• The Chotanagpur Plateau, Deccan Plateau of India

3. Plains are highly populated. Give reasons

Plains are flat and relatively low-lying lands. Plains are usually less than 200 metre above sea level. Sometimes they may be rolling or undulating. Most plains are formed by rivers and their tributaries and distributaries. These plains are used extensively for agriculture due to the availability of water and fertile soil. They are most suitable for human inhabitation. Hence, they are the highly populated regions of the world.

4. Give the important features of the Pacific Ocean.

• The Pacific Ocean is the largest and deepest ocean on the Earth.

• It covers about one-third of the Earth’s total area.

• This ocean’s shape is roughly triangular with its apex in the north at the Bering Strait which connects the Pacific Ocean with the Arctic Ocean.

• The Bering Sea, the China Sea, the Sea of Japan, Tasman Sea and the Philippine Sea are some of the marginal seas of the Pacific Ocean.

• Indonesia, Philippines, Japan, Hawaii, New Zealand are some of the islands located in this Ocean.

• The deepest point Mariana Trench is 10,994 m- and is located in the Pacific Ocean.

• A chain of volcanoes is located around the Pacific Ocean called the Pacific Ring of Fire.

5. Write down the importance of oceans.

The Earth looks blue when we see it from space. This is because, two-thirds of it is Covered by water. The water is found in oceans and seas. Oceans are vast expanse of water. Seas are water bodies partially or fully enclosed by. Land

J. Picture Study

1. Name the landform. Valley

2. What order of a landform is this? Third order Landform

3. Which activity of river is this landform formed by? Stream

K. i) Activity

1. Trip to the nearby area to appreciate the physical features of any kind of landform.

2. Conduct a quiz on landforms and oceans.

ii) Activity

1. Give examples for the following using an Atlas.

a. Bay: Bay of Bengal, San Francisco bay, Hudson Bay.

b. Gulf: Gulf of Aden, Gulf of Alaska, gulf of Mannar

c. Island: Capri, Whitsundays, Lakshadweep

d. Straits: palk strait, Malacca, cook strait

2. Map reading (with the help of atlas)

a. A sea in the east of India

b. Continents in the west of Atlantic Ocean

c. Continents in the south of Arctic Ocean

d. A strait between India and Sri Lanka

e. Oceans which surround Australia

f. Find out the Isthumusses (Create more questions)

3. On the given outline map of the world, label the continents and mountain ranges.

4. On the given outline map of the world, label oceans, seas, isthumus and straits.