Some people like to drive their quad bikes, trail bikes and four wheel drive vehicles off-road in deserts. Which of the following problems does this cause?
25%
Noise frightens away the birds
25%
The soils are disturbed, damaging the ecosystem of the desert
25%
They run over all of the desert animals because the animals don't know that they need to get out of the way
25%
It creates severe air pollution, killing plants and animals
Q.2.
What are the challenges to humans living in a desert?
100%
Extreme temperatures only
0%
Low rainfall and low fertility soils only
0%
Low fertility soils combined with the extremes of temperatures
0%
Low fertility soil, lack of water and large daily range of temperatures
Q.3.
City officials of Las Vegas have asked people to recycle as much waste water as possible. Why?
100%
To save money
0%
To save on electricity
0%
When put on plants, waste water acts as a fertilizer
0%
Since 2000, there has been less rainfall than normal
Q.4.
Salinisation is a problem with agricultural land in deserts. What is salinisation?
0%
Adding mineral salts to the desert soil to increase fertility
0%
An increase in the levels of salts and minerals on the surface of the soil owing to evaporation of water
100%
The removal of salt from desert soils
0%
Using salty water to make drinking water
Q.5.
The Mojave Desert in the US is used by which of the following groups of people.
100%
Tourists and the military
0%
Film makers
0%
All of the above
0%
Nobody ever goes there
Q.6.
Which of the following statements about humans and the desert is not true.
100%
The way of life lead by hunter-gatherer tribes is regarded as being sustainable
0%
There are no cities built in deserts
0%
Irrigation of crops can ultimately create soils that are toxic to plants
0%
Areas of hot deserts are used for generating electricity
Q.7.
Farming takes place in many hot deserts. Desert soil is:
0%
made only from sand
100%
low in nutrients so allowing many different types of farming
0%
low in nutrients which makes farming very difficult
0%
highly fertile, allowing a wide variety of farming
Q.8.
Egypt is a country that is mainly desert and farmers relied on the annual flooding of the river Nile. When the Nile was dammed in 1970, downstream from the dam, flooding stopped so the farmers:
0%
have had to find other work
100%
needed to buy more fertilizers for their land
0%
needed to buy water off the government as they own the dam
0%
have not been affected in any way
Q.9.
Which of the following is the most likely to be a reason that deserts in a LEDC do not have cities like Las Vegas?
50%
There is a lack of resources and money to find and use water sources
50%
There are fewer people in LEDCs
0%
Farmers in LEDCs can't afford fertilizers
0%
All of the above
Q.10.
In the deserts of LEDCs, tribes of nomadic pastoralists are found. These tribes are:
100%
people who keep moving with their animals
0%
people who settle in one place and grow crops in the desert
0%
people who grow crops then move to another area to sell the crops
0%
people who travel around a country looking for work on farms
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