18-19 EXAM RATED 100%
CORRECT
Sahara-Answer-the largest desert in the world, stretching 3,000 miles across the African
continent, from the Atlantic Ocean to the Red Sea, and measuring 1,200 miles from
north to south. Area where temperatures can reach 122*F in the summer and fall below
freezing at night in the winter.
aquifer-Answer-an underground layer of rock that stores water
oasis-Answer-a place where water from an aquifer has reached the surface; it supports
vegetation and wildlife
Serengeti Plain-Answer-an area of East Africa, (tropical grassland area in north-central
Tanzania containing some of the best grasslands in the world and many grazing
animals, most likely able to gaze at a wildebeest through tall grass
canopy-Answer-the area encompassing the tops of the trees in a rain forest, about 150
feet above ground, also an area of the rain forest you would find most of the animals
Niger delta-Answer-area of Nigeria with rich oil deposits, severely damaged as a result
of drilling for oil
Sahel-Answer-a narrow band of dry grassland, running east to west on the southern
edge of the Sahara, that is used for farming and herding
desertification-Answer-an expansion of dry conditions to moist areas that are next to
deserts. term used to indicate a shift of the desert
Aswan High Dam-Answer-on the Nile river in Egypt, completed in 1970, which
increased Egypt's farmable land by 50% and protected it from droughts and floods,
problems have occurred by decreased silt deposits on the surrounding farmlands. Built
to regulate the water supply along the Nile River
silt-Answer-loose sedimentary material containing very small rock particles, formed by
river deposits and very fertile
Olduvai Gorge-Answer-a site of fossil beds in northern Tanzania, containing the most
continuous known record of humanity over the past 2 million years, including fossils
from 65 hominids
Aksum-Answer-an important trading capital from the first to the eighth centuries A.D. in
what is now Ethiopia; it flourished due to its location near the Red Sea and the Indian
Ocean