TBSHS GCSE Geography - Drought 1

Characteristics of arid areas:

• Frequently suffer from drought

• Associated with low air pressure

• 10-250 mm precipitation a year

• Permanent low precipitation

In arid areas, the normal climate is dry. This is because:

• They normally have high pressure conditions

• They normally have low pressure conditions

• As air sinks it warms and dries out

• As air rises it cools and dries out

Select the statement(s) that are characteristic of drought conditions:

• Low pressure conditions

• Temporary low precipitation conditions

• High pressure conditions

• Permanent low precipitation

Definitions of drought.

Select the correct statements.

• In the UK, drought is 15 consecutive days without rainfall

• In the UK, drought is 7 consecutive days without rain

• When an area receives less than average precipitation

• Permanent low precipitation

Drought - select the correct statement

• Drought is a hazard that can affect any area, regardless of its level of development

• Drought only affects arid (dry) environments

• The UK is particularly vulnerable to drought

• The Sahara Desert is particularly vulnerable to drought

Meteorological drought is...

• due to human activity

• where the hydrological cycle receives less rainfall than normal

• where an area receives less than average precipitation

• associated with low pressure systems

Hydrological drought is...

• due to human activity

• where the hydrological cycle receives less rainfall than normal

• where an area receives less than average precipitation

• associated with low pressure systems

Which area is most likely to suffer from drought?

• Countries that have rainfall throughout the year

• Areas that receive the majority of their annual rainfall during particular months

• Areas that normally receive 10-250 mm of rainfall a year

• Deserts

Select TWO factors that increase the likelihood of drought occurring:

• The majority of the precipitation falls during the summer months

• The majority of the precipitation falls during the winter months

• The majority of their annual precipitation falls during particular months

• Rain falls throughout the year

Factors that reduce the likelihood of water being infiltrated into the soil:

• Precipitation falls on ground that has been baked hard by intense sunlight

• High rates of evaporation

• Low rates of evaporation