Tackling Desertification Quiz

What is the role of evaporation in the process of salinisation?

• It decreases soil temperature.

• It draws water to the surface, leaving salts behind.

• It increases soil moisture.

• It prevents salt accumulation.

Why is irrigation necessary in hot deserts for commercial farming?

• To increase rainfall.

• To provide water for crops.

• To decrease soil salinity.

• To enhance soil erosion.

What is one benefit of the stone walls in Burkina Faso?

• They increase the temperature

• They increase crop yield by up to 50%

• They decrease rainfall

• They increase desertification

What problem do 'magic stones' help to address in Burkina Faso?

• Flooding

• Soil erosion

• Air pollution

• Deforestation

Which country is currently the furthest along with the Great Green Wall project?

• Nigeria

• Senegal

• Ethiopia

• Kenya

How many acres of trees has Senegal planted for the Great Green Wall?

• 10,000 acres

• 20,000 acres

• 50,000 acres

• 100,000 acres

What is the purpose of magic stones?

• To generate hydroelectric power

• To capture storm water as it flows over the ground

• To cause soil erosion

• To create recreational lakes

What is the role of sloping roofs in rainwater harvesting?

• To increase wind resistance

• To siphon off rainfall into water butts

• To provide insulation

• To support solar panels

What is stored in water butts according to the text?

• Sand

• Condensation

• Oil

• Gravel