Y9 End of Year Revision

What is the minimum rainfall required to define an area as a desert?

• Less than 250mm per year

• Less than 100mm per year

• Less than 5000mm per year

• Less than 1000mm per year

Which adaptation helps desert plants survive?

• Deep roots to access groundwater

• Waxy coating to reduce water loss

• Small or no leaves to minimize transpiration

• All of the above

Which economic activity is NOT a major opportunity in hot desert regions?

• Solar energy production

• Mineral extraction

• Commercial fishing

• Tourism

What is desertification?

• The natural formation of desert biomes

• The spread of desert-like conditions into non-desert areas

• The shrinking of desert regions

• The migration of people away from desert areas

Which of these is a cause of desertification?

• Drought

• Overgrazing

• Deforestation

• All of the above

Desertification is primarily caused by natural factors and has little connection to human activities.

• True

• False

What technology helps prevent soil erosion in areas at risk of desertification?

• Bunds

• Solar panels

• Wind turbines

• Air conditioners

Which desert biome feature causes extreme temperature fluctuations between day and night?

• High altitude

• Lack of cloud cover

• Proximity to oceans

• Mountain ranges

What is an appropriate technology to tackle deforestation in desert-margin areas?

• Efficient stoves

• Skyscrapers

• Hydroelectric dams

• Air conditioning

Which animal adaptation is particularly helpful for surviving in hot deserts?

• Being nocturnal

• Having thick fur

• • Having large ears

• • Living in large groups