Questions 1-10
Complete the notes below.
Write ONE WORD ONLY for each answer.
The use of soil to reduce carbon dioxide in the atmosphere
Rattan Lal:
• Claims that 13% of C02 in the atmosphere could be absorbed by agricultural soils
• Erosion is more likely in soil that is 1
• Lal found soil in Africa that was very 2
• It was suggested that carbon from soil was entering the atmosphere
Soil and carbon:
• plants turn C02 from the air into carbon-based substances such as 3
• some C02 moves from the 4 of plants to microbes in the soil
• carbon was lost from the soil when agriculture was invented
Regenerative agriculture:
• uses established practices to make sure soil remains fertile and 5
• e.g. through year-round planting and increasing the 6 plants that are grown
California study:
• taking place on a big 7 farm
• uses compost made from waste from agriculture and 8
Australia study:
• aims to increase soil carbon by using 9 that are always green
Future developments may include:
• reducing the amount of fertilizer used in farming
• giving farmers 10 for carbon storage, as well as their produce