Complete each sentence with the correct ending, A-F, below.
A may improve the number and quality of plants growing there.
B may contain data from up to nine countries.
C may not be put back into the soil.
D may help governments to be more aware of soil-related issues.
E may cause damage to different aspects of the environment.
F may be better for use at a global level.
Write the correct letter, A-F, in boxes 18-21 on your answer sheet.
18. Nutrients contained in the unused parts of harvested crops