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Solutions for Geography, Class 7, ICSE
Answer in one word:
(a) A narrow strip of land separating two seas.
(b) A sudden fall of water from a certain height.
(c) A narrow stretch of water connecting two seas.
(d) A region of tall and coarse grass in tropical Africa.
(e) Temperate grassland of South Africa.
(f) A narrow steep sided valley formed between two parallel faults.
(a) Isthmus
(b) Waterfall
(c) Strait
(d) Savanna
(e) Veld
(f) Rift Valley
Match the following:
| Column A | Column B |
|---|---|
| Ghana | Lusaka |
| Kenya | Khartoum |
| Ethiopia | Addis Ababa |
| Sudan | Nairobi |
| Zambia | Accra |
| Column A | Column B |
|---|---|
| Ghana | Accra |
| Kenya | Nairobi |
| Ethiopia | Addis Ababa |
| Sudan | Khartoum |
| Zambia | Lusaka |
Fill in the blanks:
(a) The ............... Nile is a tributary of river Nile.
(b) River Nile is ............... km long.
(c) The Nile Delta is ............... km wide.
(d) Fold mountains are remnant of ............... old fold mountains.
(e) Africa is called 'Dark Continent' because it could not be ............... by the Europeans.
(f) ............... is the highest mountain in Africa.
(a) The white Nile is a tributary of river Nile.
(b) River Nile is 6670 km long.
(c) The Nile Delta is 250 km wide.
(d) Fold mountains are remnant of ancient old fold mountains.
(e) Africa is called 'Dark Continent' because it could not be explored by the Europeans.
(f) Mt. Kilimanjaro is the highest mountain in Africa.
Explain the following:
(i) Isthmus
(ii) Strait
(iii) Block mountains
(iv) Rift Valley
(i) Isthmus — An Isthmus is a narrow strip of land with water on each side, connecting 2 masses of land, e.g., the Isthmus of Suez.
(ii) Strait — A Strait is a narrow stretch of water connecting two seas, e.g., The Strait of Gibraltar connects the Mediterranean Sea with the Atlantic Ocean.
(iii) Block Mountains — Block mountains represent the upstanding parts of the ground between two faults or on either side of a Rift Valley.
(iv) Rift Valley — A Rift Valley is a long and narrow valley with steep sides. When the land between two faults sinks, it forms Rift Valley.
Name the three important parallels of latitudes which pass through Africa.
The 3 important parallels of latitudes which pass through Africa are:
State the latitudinal and longitudinal extent of Africa.
Africa extends from 37°N to 35°S latitude and 17°W to 51°E longitudes.
Name the water bodies surrounding the continent of Africa.
The water bodies surrounding the continent of Africa are:
Why is Africa called the dark continent? State any two reasons.
Two reasons why Africa is called the dark continent are:
State the four physiographic divisions of Africa.
The physical divisions of Africa are:
Name any three basins of Africa.
Three basins of Africa are:
What is the extent of the Great rift valley of Africa? Name any two lakes situated within the area of Rift Valley.
The Great Rift Valley of Africa is about 6440 kilometre long and extends from Red Sea to river Zambezi in the South.
Two lakes situated within the area of Rift Valley are:
Why is Egypt known as the gift of Nile?
The country Egypt is called the Gift of the Nile as it is Egypt’s lifeline. Without the Nile, Egypt would have been a desert. The Nile gave Egypt fertile, fine silt soil and alluvial deposition. This soil is good for growing crops.
Why is river Zaire not fit for navigation? Name its tributaries.
River Zaire has many falls and rapids hence, it is not fit for navigation.
Ubangi and Kasai are its main tributaries.
From where does river Nile originate? Name its main tributaries.
River Nile originates from Lake Victoria. White Nile and Blue Nile are the main tributaries of River Nile.
River Nile originates in
Victoria
The northern part of Africa is a
Desert
Mount Rwenzori is a
Block mountain
The most prominent physical feature of Africa is
Rift Valley
The longest river in the world is
River Nile
The southernmost point of South Africa
Cape Agulhas
Africa is separated from Europe by
Strait of Gibraltar
A narrow stretch of land connecting two land masses and separating two water bodies.
Isthmus
Africa is also known as
Plateau continent
One-third of Africa is covered by this desert
Sahara
Best example of which type of mountains are the Atlas Mountains?
Young fold mountains
The highest mountain in Africa is
Mount Kilimanjaro.
The most prominent physical feature of Africa, a long and narrow valley with steep sides
Rift Valley.
Which lake does not lie in the arc of the Rift Valley chain.
Lake Victoria
Name the river whose tributaries are Ubangi and Kasai
Zaire