Why does high atmospheric pressure lead to periods of drought?
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The descending air moves too fast to rain
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The air is descending, which inhibits the formation of cloud
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The high pressure forces the rain clouds away
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The winds in an area of high pressure blow rain clouds through too fast
Q.2.
In the UK, droughts can reduce the water table, leading to small and seasonal rivers running dry, water having to be regulated by hosepipe bans, fish struggling due to increased concentrations of pollutants and low oxygen levels in the slow moving waterways. Which of the following is not a way that households can reduce water use?
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Having a water meter fitted
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Using a hosepipe more
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Reducing the size of the toilet cistern
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Taking showers rather than baths
Q.3.
Do all droughts have the same effect worldwide?
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Yes, since droughts are measured by their effects
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No, since average rainfall differs between countries, so below average is a different measurement depending on the climate
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Yes, since drought is measured by a specific amount of rainfall
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No, since drought is measured on amount of water in the rivers and water table and so can be influenced by a variety of factors
Q.4.
Which of these is a secondary hazard of drought?
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Water shortage
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Desertification
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Warmer weather
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Hurricanes
Q.5.
Which of the following is a primary hazard of drought?
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Lack of water
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Reduced tourism
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Damage to crops
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Damage to wildlife
Q.6.
Why is drought worse in areas that are considered marginal land for farming?
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There is no margin of error, as the land is already difficult to grow crops on
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People will give up sooner since the margin for profits are much lower
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Being on higher ground, they will dry out sooner
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Marginal land is less prone to desertification
Q.7.
How does the UK ensure the population have a continuous supply of water?
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By pumping water out of rivers
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By desalination of sea water
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By recycling water from sewage
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By using reservoirs to store water and boreholes to reach the water table
Q.8.
How is climate change likely to affect the number of occurrences of drought?
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Droughts will reduce, as the warmer air is able to hold more moisture
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It's unlikely to change to any great amount as the drought hit areas are already an extreme environment
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It's unlikely to change to any great amount as an increase in floods will compensate
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Drought will become more common as extreme weather becomes more common
Q.9.
What is a drought?
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A period of highly variable rainfall
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When rivers fall below particular levels
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A period of below average precipitation in a specific region
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When there is no water for human or animal use
Q.10.
Which of these areas is prone to dangerous droughts?
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The Lake District
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Canada
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Sahel, in North Africa
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Bangladesh
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