WHERE IS THE NILE RIVER

The river Nile is in Africa. It originates in Burundi, South of equator, and flows northward through north eastern Africa, eventually flowing through Egypt and finally draining into the Mediterranean Sea. The Nile is a major north-flowing river in northeastern Africa, It is the longest river in the world running about 6,650 km   

The River Nile is formed from the White Nile, which originates at Lake Victoria and the Blue Nile, which originates at Lake Tana in Ethiopia. These rivers meet in Sudan and then go on their long journey northwards towards the sea.

The White Nile is a lot bigger than the Blue Nile, but because of losses along the way the it only contributes about 15% to the flow of the combined Nile. The Blue Nile, rising in Ethiopia, contributes about 85% to the flow of the Nile that passes through Egypt to the Mediterranean.

The course of the Nile in Sudan is distinctive. It flows over six groups of cataracts, from the first at Aswan to the sixth at Sabaloka (just north of Khartoum) and then turns to flow southward before again returning to flow north. This is called the Great Bend of the Nile.

The Yellow Nile is a former tributary that connected the Ouaddaï Highlands of eastern Chad to the Nile River. Its remains are known as the Wadi Howar. The wadi passes through Gharb Darfur near the northern border with Chad and meets up with the Nile near the southern point of the Great Bend.

BLACK CHERRY TREE

The black cherry tree is a woody plant species belonging to the genus Prunus. The tree can grow up to 15-35 metres with a trunk diameter of up to 50 – 130 centimetres, a mature black cherry can easily be identified in a forest by its very broken, dark grey to black bark, which has the appearance of very thick, burnt cornflakes.

Pale green berries begin to form as pea-size balls in late spring, born in long, hanging clusters, Ripening in late summer, The fruit is not truly ripe, however, until it has turned black, usually in August. By then, it has softened and become quite juicy. Edible by humans, the tastes is sweater when ripe, but is still some what bitter.

Because the seeds so easily germinate, this tree can quickly invade in lawns, borders and forests, and grows from a seeding even in underbrush. It prefers deep, moist, rich soil of varying PH levels, but will tolerate poorer soils and drought once established. 

ABOUT WHALES

Whales are the largest animals one earth they are mammals

What hunt for food using a variety of techniques and not all 

species of whale will hunt for or attack their prey in the same way. 

The way it works is as they their prey they send out a series of clicking and busing noises, these clicking and busing sounds bounce off of objects in the area (such as fish or other aquatic lifeforms) and return back to the whale indicating information such as how far objects are, what type of texture it is (hard or soft), and whether or not the object is moving or still.

Unlike most animals, whales are conscious breathers. All mammals sleep, but whales cannot afford to become unconscious for long because they may drown

Whaling is no longer the only threat to whales. The oceans, or rather, human impacts on the oceans, have changed dramatically over the half-century since whales have been protected.

Known environmental threats to whales include global warming, pollution, overfishing, ozone depletion, noise such as sonar weaponry, and ship strikes. Industrial fishing threatens the food supply of whales and also puts whales at risk of entanglement in fishing gear.

THE GERMINATION OF SEEDS

The aim is to illustrate that heat is liberated during respiration

The apparatus A and B

Take 2 thermometers, 2 thermos flasks, 2 rubber stoppers,2 beakers with seeds like beans or peas.

Take 2 beakers with seeds. To one of the beakers add water and allow the seeds soak for the whole night. On the next day morning take two wide mouthed thermos flasks which can be closed with a tight fitting cork. Put the germinating seeds into one of the thermosflasks and dry seeds in another thermos flask. Make a hole in the cork and insert a thermometer into cork and see the bulb of the thermometer is in the midst of the seeds. Record the temperature in both the flasks at every two or three hour intervals for about 24h.

In dry seeds, enzymes are inactive so respiration did not take place and no rise in temperature where as in germinating seeds enzymes are active and respiration has taken place with rise in temperature.

AFRICA TALLEST MOUNTAIN

Kilimanjaro it is 5895m in height it is situated in Tanzania, it has three volcanic cones  Kibo, Mawenzi, and Shira,Kilimanjaro, the highest mountain in Africa and fourth highest of the Seven Summits, is considered the tallest freestanding mountain in the world, rising 15,100 feet (4,600 meters) from base to summit.

Kilimanjaro is composed of three distinct volcanic cones: Kibo 19,340 feet (5,895 meters); Mawenzi 16,896 feet (5,149 meters); and Shira 13,000 feet (3,962 meters). Uhuru Peak is the highest summit on Kibo’s crater rim.

Kilimanjaro is a giant stratovolcano that began forming a million years ago when lava spilled from the Rift Valley zone. The mountain was built by successive lava flows. Two of its three peaks—Mawenzi and Shira—are extinct while Kibo, the highest peak is dormant and could erupt again.

According to the famous English geographer Halford Mackinder: "It was the missionary Rebmann of Mombasa who, in 1848, first reported the existence of Kilimanjaro.