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The area in a desert where water can be found is called oasis.

The Sudd is a swamp.

David Livingstone, who discovered Victoria Falls in 1855. Mungo Park followed the course of the river Niger. Henry Morton Stanley traced the course of the river Congo from Lake Tanganyika to its mouth.

The Great Rift Valley is a long narrow valley formed as a result of vertical cracks that developed because of movements within the earth. It extends for a total distance of5,000 km from Lake Malawi to Red Sea and the Gulf of Aqaba to Dead Sea in Jordan. Many freshwater lakes, such as Malawi, Tanganyika, and Turkana are found here.

Explorers like David Livingstone discovered Victoria Falls. Mungo Park discovered the course of river Niger. Henry Morton Stanley traced the source of river Congo from Lake Tanganyika to its mouth.

(C) Both A & B

(B) the Nile

The lakes found in the Great Rift Valley are Lake Malawi, Lake Mobutu, Lake Edward and Lake Turkana.

Answer is (B) Africa

(B) the Nile

The slave trace (Trans Atlantic Slave Trade) is one of the most heinous crimes committed against people over the course of more than 400 years. Millions of Africans were turned from their homes, were deported to the American continent and sold as slaves. 

The slave trade resulted in the loss of human life. The savage nature of the slave trade led to the destruction of families, individuals and cultures and the vestiges of the immense loss of human capital to the African continent are still felt to this present day.

It was difficult to explore Africa because of deserts like Sahara which have severe heat and dry conditions, the undulating plateaux, non-navigable rivers, extensive equatorial forests, swampy lands and poisonous insects.

(B) Diamonds

1. The Sahara Desert is in Africa. It extends to Mauritania, Mali, Niger, Chad, Sudan, Morocco, Tunisia, Algeria, Libya, Egypt, Ethiopia and Somalia. 

2. The Kalahari Desert extends in Namibia, Botswana and Angola in South – West of Africa. These deserts are not suitable for agriculture due to scanty rainfall and infertile soils.

(A) Northern coastal

Answer is (D) Africa

The most tropical region in the world is on Africa continent.

Sudan

The biggest country in Africa is Sudan.

The biggest lake in Africa is Victoria.

(B) Europeans

1. From Africa to reach India one has to travel in west direction, 

2. The Indian Ocean has to be crossed

The three difficulties that the Europeans faced in reaching the interior parts of Africa are: 

1. Besides attempting to build their colonies in Africa, the Europeans continued to explore the interior of the continent. 

2. They travelled to the source of the Nile in the north. 

3. In the west, they explored the entire valley of the Niger and in the south, they moved northwards from Cape Town. 

4. There they explored the region around the river Zambezi.

(B) Diamonds

The slave trade was started on Africa continent.

The biggest Tropical desert in the world is the Sahara.

1. Gold, copper and diamonds were the Europeans traded with Africa. 

2. Tea, coffee, rubber, tobacco were the agricultural products they promoted for trade purposes.

Cairo is the capital city of Egypt.

(B) the Mediterranean

(A) Kalahari desert

One has to cross the Mediterranean sea from Europe to reach northern Africa.

(B) Kalahari

The biggest continent on the west side of India is Africa.

(C) Kilimanjaro

(C) Both A & B

(D) All the above

The biggest mines of gold and diamonds are in Africa continent in the world.

Answer is (D) Copper

Since most of Africa lies within the tropics, the temperatures are high throughout the year. The variations between summer and winter temperatures are only slight.

The cold Canaries Current washes the north-west coast of Africa?

True.

Savannah is another name for the Sudan type of climate.

True.

A large part of Africa lies between the tropics, and, therefore, most of the continent has a warm or hot climate. However, the amount of rainfall and humidity varies from area to area. Anoteworthy feature ofthe climate of Africa is that the northern and southern parts of the continent have opposite climates at any time ofthe year. In other words, when the northern part experiences summer, the southern part experiences winter.

False.

Nights are very cold in the Sahara Desert.

False. 

Temperate grasslands have green, short grasses.

Not much wildlife is found in the Mediterranean as the forests in the Mediterranean region are not extensive and most of the natural vegetation has been cut down, not much wildlife is found in the this region.

Plants in the Sahara are thorny and dry as these plants have thorny leaves, thick waxy stems, and long thin roots which penetrate deep for underground water.

The factors that affects the climate of Africa are latitudinal extent, land and sea contrast, ocean currents, and altitude.

Veldts or temperate grasslands are found in South Africa. The vegetation consists of short grasses, less coarse and green than those in the savannahs. On the hill slopes, poplars and willows are common.

The cold Canaries Current washes the north-west coast of Africa, while the cold Benguela Current washes the shores of south-west Africa and has a cooling influence on the adjacent land. Winds blowing over these cold currents become cold and do not pick up moisture.

A large part of Africa lies between the tropics, and, therefore, most of the continent has a warm or hot climate. However, the amount of rainfall and humidity varies from area to area.

The equatorial region has dense forests. Trees grow in this region to different heights, giving an impression of a three-tier formation. The topmost layer is the emergent layer. The giant trees thrust above the dense layer of trees and have huge mushroom shaped crowns. The trees in this layer receive a lot of sunlight and rain. The second layer is the canopy layer. The broad irregular crown of these trees form a tight, continuous canppy 20-30 m above the ground. 

The branches are often densely covered with other plants and tied together with vines. The third layer is the understorey, which receives very little sunlight and is very dark. It has young trees, shrubs, ferns, creepers, and orchids. The forest floor usually has a layer of decomposed leaves, branches, and fruits that have fallen from the trees above. As there is very little sunlight here, the growth of plants is poor. Thus, these forests are very dense and gloomy. The hardwood trees are valuable for making good quality furniture as the wood is heavy, but the trees are difficult to exploit as they do not grow in pure stand.