Class 6 Geography Chapter 5 - Exercise - ACE LESSONS ACE LESSONS - Simplifying Your Learning

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Thursday, 30 July 2020

Class 6 Geography Chapter 5 - Exercise

5. Major Domains of the Earth





Multiple Choice Questions.

  1. The mountain range that separates Europe from Asia is
    (A) the Andes
    (B) the Himalayas
    (C) the Urals

  2. The continent of North America is linked to South America by
    (A) an Isthmus
    (B) a Strait
    (C) a Canal

  3. The major constituent of the atmosphere by percent is
    (A) Nitrogen
    (B) Oxygen
    (C) Carbon dioxide

  4. The domain of the earth consisting of solid rocks is
    (A) the Atmosphere
    (B) the Hydrosphere
    (C) the Lithosphere

  5. Which the largest continent?
    (A) Africa
    (B) Asia
    (C) Australia

  6. Life exists in this zone:
    (A) Lithosphere
    (B) Biosphere
    (C) Hydrosphere
    (D) Atmosphere

  7. It is the only continent through which the tropic of Cancer, the Equator and the Tropic of Capricorn pass:
    (A) Asia
    (B) Europe
    (C) Africa
    (D) North America

  8. It is the world’s longest mountain range
    (A) The Mt. Everest
    (B) The Ural Mountains
    (C) The Karakoram range
    (D) The Andes

  9. Which ocean is ‘S’ shaped?
    (A) The Pacific Ocean
    (B) The Atlantic Ocean
    (C) The Indian Ocean
    (D) The Arctic Ocean

  10. Which one is not the layer of the Atmosphere?
    (A) The Biosphere
    (B) The Troposphere
    (C) The Stratosphere
    (D) The Mesosphere

  11. It is called an island continent
    (A) South America
    (B) Antarctica
    (C) Africa
    (D) Australia

Fill in the Blanks.

  1. The deepest point on the earth is Mariana Trench in the Pacific Ocean.
  2. The Indian Ocean is named after a country.
  3. The Biosphere is a narrow contact zone of land, water, and air that supports life.
  4. The continents of Europe and Asia together are known as Eurasia.
  5. The highest mountain peak on the earth is Everest.
  6. The South Pole lies almost at the center of Antarctica.
  7. Africa is the second-largest continent after Asia.
  8. The world's longest river the Nile flows through Africa.
  9. The hydrosphere comprises water in the form of ice, water, and vapour.
  10. The Arctic Ocean is connected with the Pacific Ocean by a narrow stretch of shallow water known as Berring Strait.
  11. The Pacific Ocean is circular in shape.
  12. The Coastline of the Atlantic Ocean is highly indented.
  13. Europe lies to the west of Asia.

True or False.

  1. The shape of the Pacific Ocean is almost triangular. F
  2. A very small part of Africa lies in the Northern Hemisphere. F
  3. The level of seawater remains the same everywhere. T
  4. Air moves from low pressure to high pressure. F
  5. Carbon dioxide is an important constituent of air. T
  6. The atmosphere is composed mainly of nitrogen and oxygen. T

Important Questions.

  1. Which is large: Europe or Australia?

    Answer: Europe is larger than Australia.

  2. How is nitrogen a significant gas?

    Answer: Nitrogen helps in the growth of living organisms.

  3. What is the Junction of carbon dioxide?

    Answer: Carbon dioxide absorbs the heat radiated by the earth and thus keeps the planet warm.

  4. What is the height of the Mt. Everest?

    Answer
    : The height of the Mt. Everest is 8,848 meters.

  5. In which Hemisphere does Asia lie?

    Answer: Asia lies in the Eastern Hemisphere.

  6. Name the world's largest hot desert. Where is it located?

    Answer: The Sahara desert. It is located in Africa.

  7. How is North America linked to South America?

    Answer
    : North America is linked to South America by a narrow strip of land called the Isthmus of Panama.

  8. Name the oceans that surround North America.

    Answer: The Pacific Ocean, the Atlantic Ocean, and the Arctic Ocean.

  9. Which two oceans surround South America on the east and the west?

    Answer: On the east - the Atlantic Ocean. On the west - the Pacific Ocean.

  10. Name the research stations of India in Antarctica.

    Answer: Maitri and Dakshin Gangotri.

  11. What percent of the earth is covered with water?

    Answer: More than 71% of the earth is covered with water.

  12. How much of the earth’s water is found in the oceans?

    Answer: More than 97% of the earth's water is found in the ocean.

  13. Why is the ocean water not fit for human use?

    Answer: Because the ocean water is very salty.

  14. Why do the mountaineers carry with them oxygen cylinders?

    Answer: The mountaineers carry with them oxygen cylinders so that they can easily breathe at high altitudes.

  15. How does the temperature on earth change?

    Answer: The temperature decreases as we go upwards.

  16. Name the continents that surround the pacific ocean.

    Answer: Asia, Australia, North America, and South America.

  17. Which is the busiest ocean from the point of view of commerce?

    Answer: The Atlantic ocean is the busiest ocean from the point of view of commerce.

  18. Mention two reasons for fast soil erosion.

    Answer: (1) Cutting of forests for wood. (2) Clearing land for agriculture.

  19. What happened to Andaman and Nicobar islands during Tsunami?

    Answer: Parts of these islands were submerged underwater during the Tsunami.

  20. What makes the water of lakes and rivers unsuitable for human use?

    Answer: Discharge of waste material into lakes and rivers makes the water unsuitable for human use.

  21. Mention any two reasons for air pollution.

    Answer:
    (1) Emission from industries (2) Emission from vehicles.

  22. What kind of equipment carried by the climbers for protection against sunshine, temperature, and the lack of air?

    Answer: The mountaineers carry oxygen cylinders to be able to breathe at high altitudes. They wear special jackets to avoid temperature. They also wear sunglasses and cap to save themselves from the scorching heat of the sun.

  23. Write about the major oceans of the world.

    Answer:

    1. The Pacific Ocean - It is the largest ocean and is spread over one-third of the earth. Mariana Trench, the deepest part of the earth, lies under the Pacific Ocean. This ocean is circular in shape. Asia, Australia, North, and South America surround it.

    2. The Atlantic Ocean - It is the second-largest ocean in the world. It is ‘S’ shaped. It is flanked by the North and South Americas on the Western side and Europe and Africa on the eastern side. The coastline of this ocean is highly indented. It is the ideal location for natural harbors and ports. Commercially, it is the busiest ocean.

    3. The Indian Ocean - It is the only ocean named after a country, India. The shape of the ocean is triangular. It is bound by Asia in the north, by Africa in the west and by Australia in the east.

    4. The Arctic Ocean - It is located within the Arctic Circle and surrounds the North Pole. It is connected with the Pacific Ocean by a narrow stretch of shallow water known as Berring Strait.

    5. The Southern Ocean - It encircles the continent of Antarctica and extends northward to 60 degrees south latitude.

  24. Describe all the major continents.

    Answer

    1. Asia is the largest continent. It covers about one-third of the total land area of the earth. It lies in the Eastern Hemisphere. The Tropic of Cancer passes through this continent. Asia is separated from Europe by the Ural mountains on the west. The combined landmass of Europe and Asia is called Eurasia (Europe + Asia).

    2. Europe lies to the west of Asia. The Arctic circle passes through it. It is bound by water bodies on three sides.

    3. Africa is the second-largest continent after Asia. The Equator or 0° latitude runs almost through the middle of the continent. A large part of Africa lies in the Northern Hemisphere. It is the only continent through which the Tropic of Cancer, the Equator and the Tropic of Capricorn pass. It is bound on all sides by oceans and seas. The world’s largest hot desert, i.e. The Sahara Desert lies in this continent. The world’s longest river the Nile flows through it.

    4. North America is the third-largest continent of the world. It is linked to South America by a very narrow strip of land called the Isthmus of Panama. This continent lies completely in the Northern and Western Hemisphere.

    5. South America lies mostly in the Southern Hemisphere. The Andes, the world’s longest mountain range, runs through its length from north to south. The world’s largest river, the Amazon flows through this continent.

    6. Australia is the smallest continent. It lies entirely in the Southern Hemisphere.

    7. Antarctica lies completely in the Southern Hemisphere. It is a large continent. The South Pole lies almost at the center of this continent It is permanently covered with thick ice sheets because it is located in the South Polar region. Permanent human settlement is not found here.

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