Which of the following statements shows a natural cause of desertification?

• Unreliable rain.

• More people move to slums in the cities.

• The population is growing.

• Less food is produced.

Which of the following situations does not lead to desertification?

• Overgrazing

• Tree loss

• Soil Erosion

• Drip irrigation

Which of the following countries DOES NOT HAVE a major oil reserves?

• USA

• NIGERIA

• RUSSIA

• GREENLAND

How do people depend on oil?

• To use oil as fuel for cars, planes, ships, etc.

• Oil spills harm the environment.

• It produces other harmful gases and gives acid rain.

• Oil is moved around the world by pipeline or in tankers.

Which of the renewable sources of energy does not need turbines?

• Hydroelectric

• Wind farm

• Solar farms

• Tide

The coil of wire is attached to a rotating drum called a solar cell.

• AGREE

• DISAGREE

In 2013, the wind was the renewable energy source that provided the UK's most electricity.

• AGREE

• DISAGREE

Which of the statements shows how the UK can change its energy source?

• Reducing the energy demand.

• Heat and pressure turn their remains into the oil.

• Power stations burn it to produce electricity.

• Only the Scottish government aims to cut back on fossil fuels.

Some oil-producing countries are politically unstable and less economically developed. Therefore, there are unlimited oil supplies.

• TRUE

• FALSE

It occurs when soil particles are pressed together, reducing pore space between them. Which term is described in the statement?

• Soil erosion

• Desertification

• Compacted soil

• Degraded soil