Question 14 Marks
The solid portion of the earth is called the lithosphere. It comprises the rocks of the earth’s crust and the thin layers of soil that contain nutrient elements which sustain organisms. There are two main divisions of the earth’s surface. The large landmasses are known as the continents and the huge water bodies are called the ocean basins. All the oceans of the world are connected with one another. The level of seawater remains the same everywhere. Elevation of land is measured from the level of the sea, which is taken as zero. The highest mountain peak Mt. Everest is 8,848m above the sea level. The greatest depth of 11,022 m is recorded at Mariana Trench in the Pacific Ocean. There are seven major continents. These are separated by large water bodies. These continents are – Asia, Europe, Africa, North America, South America, Australia and Antarctica. Asia is the largest continent. It covers about one-third of the total land area of the earth. The continent 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 the Eurasia (Europe + Asia). Europe is much smaller than Asia. The continent lies to the west of Asia. The Arctic Circle passes through it.
It is bound by water bodies on three sides. Look at the map of the world and locate it. 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. The Sahara Desert, the world’s largest hot desert, is located in Africa. The continent is bound on all sides by oceans and seas. The world’s longest river, the Nile, flows through Africa. North America is the third largest continent in the world. It is linked to South America by a very narrow strip of land called the Isthmus of Panama. The continent lies completely in the Northern and Western Hemisphere. Three oceans surround this continent. The Andes, world’s longest mountain range, runs through its length from north to south. South America has the world’s largest river, the Amazon. Australia is the smallest continent that lies entirely in the Southern Hemisphere. It is surrounded on all sides by the oceans and seas. It is called an island continent. Antarctica, completely in the Southern Hemisphere, is a huge continent. The South Pole lies almost at the centre of this continent. As it is located in the South Polar Region, it is permanently covered with thick ice sheets. There are no permanent human settlements. Many countries have research stations in Antarctica. India also has research stations there. These are named as Maitri and Dakshin Gangotri.
Q.1. Which domain has solid portion on the earth?
(a) Lithosphere $\quad$ (b) Atmosphere $\quad$ (c) Hydrosphere $\quad$ (d) All of these
Q.2. Where is Mariana Trench located?
(a) Atlantic ocean $\quad$$\quad$ (b) Pacific ocean
(c) Indian ocean $\quad$$\quad$ (d) None of these
Q.3. The combined landmass of which continent is known as Eurasia?
(a) Europe - Asia $\quad$$\quad$(b) Europe + Antarctica
(c) Asia + North America$\quad$$\quad$ (d) Africa + Europe
Q.4. The Sahara Desert, the world’s largest hot desert, is located in:
(a) Africa $\quad$ (b) Europe $\quad$ (c) Australia $\quad$ (d) Asia
It is bound by water bodies on three sides. Look at the map of the world and locate it. 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. The Sahara Desert, the world’s largest hot desert, is located in Africa. The continent is bound on all sides by oceans and seas. The world’s longest river, the Nile, flows through Africa. North America is the third largest continent in the world. It is linked to South America by a very narrow strip of land called the Isthmus of Panama. The continent lies completely in the Northern and Western Hemisphere. Three oceans surround this continent. The Andes, world’s longest mountain range, runs through its length from north to south. South America has the world’s largest river, the Amazon. Australia is the smallest continent that lies entirely in the Southern Hemisphere. It is surrounded on all sides by the oceans and seas. It is called an island continent. Antarctica, completely in the Southern Hemisphere, is a huge continent. The South Pole lies almost at the centre of this continent. As it is located in the South Polar Region, it is permanently covered with thick ice sheets. There are no permanent human settlements. Many countries have research stations in Antarctica. India also has research stations there. These are named as Maitri and Dakshin Gangotri.
Q.1. Which domain has solid portion on the earth?
(a) Lithosphere $\quad$ (b) Atmosphere $\quad$ (c) Hydrosphere $\quad$ (d) All of these
Q.2. Where is Mariana Trench located?
(a) Atlantic ocean $\quad$$\quad$ (b) Pacific ocean
(c) Indian ocean $\quad$$\quad$ (d) None of these
Q.3. The combined landmass of which continent is known as Eurasia?
(a) Europe - Asia $\quad$$\quad$(b) Europe + Antarctica
(c) Asia + North America$\quad$$\quad$ (d) Africa + Europe
Q.4. The Sahara Desert, the world’s largest hot desert, is located in:
(a) Africa $\quad$ (b) Europe $\quad$ (c) Australia $\quad$ (d) Asia
Answer
View full question & answer→1.D. All of these
Explanation.
The solid portion of the earth on which we live is called the lithosphere. It comprises the rocks of the earth’s crust and the thin layers of soil that contain nutrient elements which sustain organisms.
2.B. Pacific ocean
Explanation.
The greatest depth of 11,022 m is recorded at Mariana Trench in the Pacific Ocean.
3.A. Europe - Asia
Explanation.
Asia is separated from Europe by the Ural Mountains on the west. The combined landmass of Europe and Asia is called the Eurasia (Europe + Asia). Europe is much smaller than Asia.
4.A. Africa
Explanation.
Africa is home to the world’s largest scorching desert, the Sahara Desert. The oceans and seas encircle the continent on all sides. Africa is home to the Nile, the longest river in the world.
Explanation.
The solid portion of the earth on which we live is called the lithosphere. It comprises the rocks of the earth’s crust and the thin layers of soil that contain nutrient elements which sustain organisms.
2.B. Pacific ocean
Explanation.
The greatest depth of 11,022 m is recorded at Mariana Trench in the Pacific Ocean.
3.A. Europe - Asia
Explanation.
Asia is separated from Europe by the Ural Mountains on the west. The combined landmass of Europe and Asia is called the Eurasia (Europe + Asia). Europe is much smaller than Asia.
4.A. Africa
Explanation.
Africa is home to the world’s largest scorching desert, the Sahara Desert. The oceans and seas encircle the continent on all sides. Africa is home to the Nile, the longest river in the world.