Water is a negative control
Ploughing and turning over the soil aerates the soil so the roots of plants are able to thrive well. Ploughing the roots of leguminous plants back to the soil returns nutritents and organic matter to the soil organically rather than using synthetic fertilisers which are potentially hazardous to the environment.
Answer:
D
Explanation:
This would assist in proving there were ice ages because it shows that cold adapted animals were living before, in what is now warm environments.
<span>the action of forming a united whole</span>
Answer:
CO2 released to the atmosphere
Explanation:
