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    Listen and answer questions 31-40

    Question 31-40

    Complete the notes below.

    Write ONE WORD ONLY for each answer.

    The use of soil to reduce carbon dioxide (CO2) in the atmosphere

    Rattan Lal:

    ●   Claims that 13% of CO2 in the atmosphere could be absorbed by agricultural soils

    ●   Erosion is more likely in soil that is

    ●   Lai found soil in Africa that was very 

    ●   It was suggested that carbon from soil was entering the atmosphere


    Soil and carbon:

    ●   plants turn CO2 from the air into carbon-based substances such as 

    ●   some CO2 moves from the  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 

    ●   e.g. through year-round planting and increasing the  of plants that are grown


    California study:

    ●   taking place on a big  farm

    ●   uses compost made from waste from agriculture and 


    Australia study:

    ●   aims to increase soil carbon by using  that are always green

    Future developments may include:

    ●   reducing the amount of fertilizer used in farming

    ●   giving farmers  for carbon storage, as well as their produce