Africa is on both sides of the equator and on both

sides of meridian 0, that's why it is so hot there and

there aren’t many reserves of drinking water. There

are considerable humidity contrasts in Africa. There are both - very humid and unusually dry areas there.

Hydrology of Africa.

The hydrology of Africa is diversified. In vast areas of deserts only sporadic or periodic rivers appear. However, in other areas large rivers being the a few thousand kilometers long

are formed. The majority of lakes is located in Large Ditches of Africa.

Rivers

In large areas of Africa there aren't any permanent rivers. In some places episodic rivers are formed. The majority of rivers is

supplied by rainfall, what usually causes two states of water: high- during the rainy season and low- before the rainy season.

The river Nile which is the longest river in Africa, is 6671 km

long from its source in Victoria Lake to its estuary in the eastern part of Mediterranean Sea.

River Nile

Lakes

The most of lakes are in the Large African Ditches. There are also the biggest lakes of Africa there:· Victoria Lake with the area of 68.8 thousand km² .· Tanganika Lake, 1470 m deep which is second, after Bajkal, the deepest lake of world.· Nyasa Lake- 30.8 thousand km²

Victoria Lake

Tanganika Lake

Nyasa Lake

Glaciers

Glaciers in Africa cover about 240 km². They are found only in highlands in the eastern part of Africa. The most of them are on

Kilimanjaro at heights of above 4800 m asl - the highest boundary of perpetual snow in the world; on Kenya (3950 m) -

the lowest boundary of perpetual snow.

Ground waters

Ground waters in Africa have a twofold origin. Largely they are supplied by rainfall, although in the vicinity of coasts the

infiltration of salt waters takes place.

RAINRAIN

WATER

GROUP 1Anna Woszczyk - Poland

Maja Gewald -PolandNatalia Baczewska - PolandNoelia Afonso Martín - SpainGorka Arnay Esteban - Spain

María Samara Ascanio Castro - SpainLucía Castañeda Benites - Spain

Andrea Candelaria Domínguez Medina - SpainAdil José El Founti Afonso - Spain

Philip - Germany