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Geo Ch 20 (without countries) Flashcards | StudBud
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Geo Ch 20 (without countries)
Geo Ch 20 (without countries)
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1
What is one way in which humans have contributed to desertification?
People planted too many trees in a desert location.
Farmers planted cash crops that depleted the soil faster.
Nomads dramatically decreased the size of their herds.
Too many people have chosen to cook with coal instead of firewood.
2
Define oasis
Land that is not well suited for growing crops
An isolated spot where water is found in the desert
The usually dry riverbeds in a desert or semi-arid area
A large area with a particular kind of scenery
3
Which of these is the best title for what this is a photo of?
there isn't enough information to tell between the 3 choices
Sahel
Sahara
Oasis
4
Define trade winds
Winds in rainforest areas that supply the desert with humidity
Winds that blow from the oceans onto land
Winds that blow east and west across desert areas all around the world
Winds in tropical latitudes that blow toward the equator
5
What are two common characteristics of a home found in an oasis environment?
large garages and kitchens
made of mud bricks and has few windows
indoor plumbing and air conditioning
more than one of the other answers is correct
6
Along the southern edge of the major desert in Africa is a semiarid grassland called.....
the Sahel.
the Great Plains.
the Southern Oasis.
the Sahara.
7
Which of these is the best title for what this is a photo of?
there isn't enough information to tell between the 3 choices
Sahara
Oasis
Sahel
8
What do ergs, regs, and hammadas have in common?
They are all desert ecosystems.
They are all unusual desert animals in Africa.
They are all rare desert plants in Africa.
They are all desert landforms.
9
Which of these is the best title for what this is a photo of?
there isn't enough information to tell between the 3 choices
Oasis
Sahara
Sahel
10
The most common jobs in the Sahel are . . .
in education and health care
engineering and ranching
in manufacturing and education
farming and herding
11
Define landscape
Sand dunes and oases
A large area with a particular kind of scenery
Rocks and trees in the Sahel
Pine forests and lakes
12
What is another major problem with farming in the area of an oasis besides water shortages?
more than one of the other answers is correct
lack of fertilizer
sand covering crops
lack of equipment such as tractors
13
Which of these is not a way humans have adapted to life in the Sahara?
wearing less clothing so they don't overheat
using stars and landmarks to travel
many having a nomadic lifestyle
using camels in a lot of ways
14
The very important river that flows through the east side of the Sahara is the.....
the Niger
the Ganges
the Nile
the Amazon
15
Choose the statement that best explains why date palms are so important to life in the Sahara.
Date palms provide shelter for nomads and their herds.
Date palms provide drinking water for people and animals.
Date palms provide a cash crop for farmers on marginal lands.
Date palms provide food, fuel, and materials for homes.
16
Define arid
Very hot
A wall or hedge that breaks the force of the wind
Dry or lacking rainfall
Very sandy
17
What is the main reason pastoral nomads move from place to place?
To find fresh pasture and water for their herds.
To sell their trade goods.
To clear new land for their crops.
To care for their date palms.
18
The most important and most common oasis plant is the.....
date palm.
baobab tree.
pine tree.
coconut.
19
Marginal land is best described as land that is....
watered by an oasis.
best used for raising crops.
on the edge of a town.
not well suited for farming.
20
Define desertification
the changing of a grassland into a forest
the process by which land becomes more and more dry
the movement of the Sahel into the Sahara
more than one of the other answers is correct
21
How are oases formed?
All the other answers are correct
In low spots, the land dips down to meet an underground stream.
Springs bubble up to the surface from streams beneath the ground.
People create wells using drilling machines or digging by hand.
22
How have the Tuareg adapted to life in the southern Sahara and Sahel?
They grow a variety of crops at desert oases.
They raise animals and live a nomadic lifestyle.
They live in cities where jobs are easier to find.
They settle along the coastline where seafood is plentiful.
23
How does the system known as shifting agriculture help marginal lands?
It brings water to dry farmlands.
It allows livestock to destroy the cover of plants.
It gives worn out fields a chance to recover.
It creates new topsoil.
24
Define cash crops
Crops that are used to block the wind in the Sahel
Crops that are grown to be sold
Crops that are grown to be consumed by the farmers and their families
Crops that are rotated from year to year to keep the soil from drying out
25
Define adaptation
A change in a way of life to suit new conditions
A large area with a particular kind of scenery
Wearing clothing to protect you from the sun
Herders who move from place to place in search of pasture and water
26
Define windbreak
Mountain ranges in central Africa
A place in deserts where water is dried out by the wind so it never rains
An area between the Sahara and Sahel where the wind doesn't blow
A wall or hedge that breaks the force of the wind
27
Which of these is a major difference between the Sahara and the Sahel?
The Sahel receives more rainfall.
The Sahara has more cropland.
The Sahel records higher temperatures.
The Sahara has larger forests.
