Drought Contrast Lab

When the water runs short

A drought is a long period when an area gets much less water than normal - usually from a spell of below-average rainfall, sometimes lasting months or years. Droughts do not hit everywhere equally. The same dry spell can be a minor inconvenience in one country and a disaster in another. This module covers what causes a drought and why some places are more vulnerable - then the skill the exam rewards most: comparing how a richer and a poorer country cope.

Three kinds of cause

Geographers sort the causes of drought into three types. Keep them separate - the exam likes you to name which kind you mean.

What deepens a drought?

Select the TWO human factors that can turn a dry spell into a serious water shortage.

• Taking too much water from rivers and groundwater for farming and cities
• A growing population and industry demanding ever more water
• Planting more trees across a river catchment
• Building extra reservoirs to store winter rain

How a drought unfolds

Put the stages of a worsening drought in order, from the first cause to the human impact.

• Rainfall stays well below average for a long period (meteorological)
• Rivers, reservoirs and groundwater drop to low levels (hydrological)
• Soil dries out and crops and pasture begin to fail (agricultural)
• Water supplies to homes, farms and industry come under strain
• Social and economic impacts spread - shortages, higher prices, hardship

Why some places suffer more

The same shortfall of rain does not hit two places the same way. A location is more vulnerable to drought when: - it already has a hot, dry climate with little spare water;\n- many people depend on rain-fed farming for food and income;\n- there is little water-storage infrastructure (reservoirs, pipes, treatment);\n- demand is high and rising from a growing population.\n\nNotice how many of these come down to money and infrastructure - which is exactly why development level matters so much.

Match each cause to an example

Which kind of cause?

After a dry winter, a region's main reservoir falls to a quarter of its usual level and rivers slow to a trickle. This is best described as which kind of drought cause?

• Hydrological - the shortfall has reached the water stores
• Meteorological - it is only about the rainfall
• Human - people caused it directly
• None - low reservoirs are not linked to drought

The same drought, two very different stories

Here is the heart of the exam question. Give the SAME drought to a higher-income and a lower-income country and the impacts and responses diverge - and almost every difference traces back to wealth.

Sort each impact

Which response needs the most money?

A country wants to guarantee fresh water even during a long drought. Which response depends most on wealth and infrastructure - and so is far easier for a richer country?

• Building desalination plants to turn seawater into drinking water
• Asking residents to save water and banning hosepipes
• Encouraging people to take shorter showers
• Waiting and hoping the rain returns soon

Match the response to the country

Three countries face the same drought. Choose the most realistic and effective response for each.

• A wealthy coastal country with a strong economy needs a long-term secure water supply. What can it realistically do that a poorer country cannot?
• A lower-income country where most people farm rain-fed land is running out of water fast, with little money for big schemes. What is the most realistic immediate response?
• You are writing the exam answer comparing the two countries. What earns the most marks?

How a drought develops

A drought begins as a _____ shortfall of rainfall, which becomes a _____ drought when rivers and reservoirs run low. People can make it worse through over-abstraction and rising _____. The same drought hits a lower-income country harder because so many depend on _____ farming, while a higher-income country can afford expensive responses such as _____.

Same drought, different income

Explain why a drought of the same size causes far greater impacts in a lower-income country than in a higher-income one. Compare their impacts and their responses directly.

• Name the type of impact for each country (social, economic and environmental)
• Explain why dependence on rain-fed farming makes a lower-income country more vulnerable
• Contrast the responses each can afford (for example desalination and transfers vs aid and low-cost measures)
• Use comparative words like "whereas" and "in contrast", and link every difference back to wealth and infrastructure

The grade-9 technique

Here is what turns a good drought answer into a top one. A weaker answer describes country A in full, then country B in full, and leaves the examiner to spot the differences. A grade-9 answer compares directly: "*Whereas* the richer country funded desalination, the poorer country *relied on* international aid." Every sentence sets the two side by side and ties the difference back to wealth, infrastructure and capacity. Same drought, opposite outcomes - and your job is to explain exactly why.