Last updated on September 18th, 2023 at 12:12 am
Chapter 5 Major Domains of The Earth
Answer the following questions briefly.
What are the four major domains of the earth?
The lithosphere, hydrosphere, atmosphere, and biosphere are the four major domains of the earth.
Name the major continents of the earth.
There are seven continents in all. Asia, Europe, Africa, North America, South America, Australia, and Antarctica are the continents.
Name the two continents that lie entirely in the Southern Hemisphere.
Australia and Antarctica are the only two continents lie in the Southern Hemisphere.
Name the different layers of atmosphere.
Troposphere, stratosphere, mesosphere, thermosphere, and exosphere are the various layers of the atmosphere.
Why is the earth called the ‘blue planet’?
Since water covers more than 71 percent of the earth and land covers just 29 percent, the earth is known as the blue planet.
Why is the Northern Hemisphere called the Land Hemisphere?
The Northern Hemisphere is known as the Land Hemisphere because it contains the majority of the Earth’s landmass.
Why is the Biosphere important for living organisms?
The biosphere is the narrow zone where land, water, and air meet. Life exists in this area, which is unique on earth. All living organisms, including humans, are interconnected and connected to the biosphere to survive.
Tick the correct answers.
(a) The mountain range that separates Europe from Asia is
- The Andes
- The Himalayas
- The Urals
Correct Answers – The Urals
(b) The continent of North America is linked to South America by
- An Isthmus
- A Strait
- A Canal
Correct answers – An Isthmus
(c) The major constituent of atmosphere by percent is
- Nitrogen
- Oxygen
- Carbon dioxide
Correct answers – Nitrogen
(d) The domain of the earth consisting of solid rocks is
- The Atmosphere
- The Hydrosphere
- The Lithosphere
Correct answers – The Lithosphere
(e) Which is the largest continent?
- Africa
- Asia
- Australia
correct answers Asia
Fill in the blanks.
- The deepest point on the earth is _____________ in the Pacific Ocean.
- The _____________ Ocean is named after a country.
- The _____________ is a narrow contact zone of land, water and air that supports life.
- The continents of Europe and Asia together are known as ____________.
- The highest mountain peak on the earth is _____________.
Answers :-
- Mariana Trench [greatest depth of 11,022 metres is recorded at Mariana Trench]
- Indian
- Biosphere
- Eurasia (Europe + Asia)[ combined landmass of Europe and Asia]
- Mount Everest
Class 6 Major Domains of the Earth Extra Question Answer
Q: What is the term for the gaseous layers that surround the Earth?
A: The gaseous layers that surround the Earth are called the Atmosphere.
Q: What term is used to describe the huge bodies of water on Earth?
A: The huge bodies of water on Earth are called ocean .
Q: From what point is the elevation of land measured?
A: The elevation of land is measured from the level of the sea, which is considered as zero.
Q: Where is the greatest depth on Earth recorded?
A: The greatest depth on Earth is recorded at Mariana Trench in the Pacific Ocean, measuring ,11,022 meters.
Q: How many major continents are there?
A: There are seven major continents.
Q: Which two continents together form the landmass called Eurasia?
A: Asia and Europe together form the landmass called Eurasia.
Q: What is the smallest continent that lies entirely in the Southern Hemisphere called?
A: The smallest continent that lies entirely in the Southern Hemisphere is called Australia.
Q: Which continent is permanently covered with thick ice sheets?
A: Antarctica is the continent that is permanently covered with thick ice sheets.
Q: Why is the ozone layer important to the atmosphere?
A: Ozone absorbs harmful ultraviolet radiation from the sun in the stratosphere.
Q: What are the two main gases that make up clean, dry air in the atmosphere?
A: The two main gases in clean, dry air are nitrogen (78%) and oxygen (%).
Q: What is the highest layer of the atmosphere called?
A: The highest layer of the atmosphere is called the exosphere.
Q: How high does the atmosphere extend from the Earth’s surface?
A: The atmosphere extends up to a height of about ,600 kilometers.
Q: What happens to the density of the atmosphere as we go higher from sea level?
A: The density of the atmosphere decreases rapidly as we go higher from sea level.
Q: What problem do climbers experience at high altitudes due to the decrease in air density?
A: Climbers experience difficulty in breathing at high altitudes due to the decrease in air density.
Q: What do climbers carry with them to be able to breathe at high altitudes?
A: Climbers carry oxygen cylinders with them to be able to breathe at high altitudes.
Q: How does temperature change as we move upwards in the atmosphere?
A: The temperature decreases as we move upwards in the atmosphere.
Q: What is the biosphere defined as?
A: The biosphere is defined as the zone where life exists on Earth.
Q: What can cutting forests and clearing land for agriculture lead to?
A: Cutting forests and clearing land for agriculture can lead to soil erosion.
Q: Which domain of the Earth includes the solid portion on which we live?
A: The domain of the Earth that includes the solid portion on which we live is the lithosphere.
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