Approximately how many people live in the Sahel region?

Approximately how much land is Niger losing each year to desertification?

What do the majority of people who live in Niger, suffer from?

How far do some women in Niger, have to go each day to collect water for their families?

Which of the following is NOT one of the measures implemented by local people in Niger, to help preserve soil quality?

Which part of a tree helps to stabilise the soil?

What is a bund?

The African Union plans plant to plant a wall of trees across the whole of Sahel region. What is this proposal called?

What is one of the most damaging human activities in the desert fringes of Sahel?

People in the Sahel have no access to gas or electricity. What do local people use for fuel?

Charities distribute equipment that allows local people to cook using local materials. What is the name of the appropriate technology?

Some stoves incorporate a thermocouple, which generates electricity from the heat. What does this enable people to do?

Which is an important source of energy for people in the Sahel?

What is essential to commercial farmers to assist with their crops growing?

Too much irrigation can lead to problems for the soil. What is this problem called?

In Australia, what is an embankment called, that is built along the contours of slopes to prevent soil being washed away?

In Australia, what are the low walls called that are used to enclose areas of land, to store water?

Which part of a tree provides nutrients for the soil?

What happens to the soil when trees are cut down?

Some areas of desert have been designated as National Parks. How big is the Desert National Park in the Thar Desert, India?

What is the National Park called that protects a desert canyon, near Las Vegas?

Which of the following benefits, does the Prosopis Cineraria tree in the Thar Desert, NOT provide for use by the local population?

Too much irrigation can lead to salination of the soil. What is salination?

The high rate of evaporation (salinisation) leads to a build up of salts on the surface of the soil. What does this do the soil and plants?