Farming

2. cost or charge of money
5. left wihtout tilling or sowing after plowing
6. to get rid of waste, such as manure
8. in the nitrogen cycle, it is the process of nitrogen changing into a less mobile and more usable form by combining with hydrogen to make amonia
10. to tame and breed for human use
12. physical surroundings; all that is around you
14. organic or inorganic nutrients that are added to the soil to help the growth of crops

1. management of money affairs
2. a community of living and non-living things that interact by exchanging matter and energy
3. to wear away topsoil by water or wind and can be caused by intensive farming and overgrazing
4. a form of natural gas that can be produced from corn
7. the study of the environment and how living things interact with it
9. a mixture or preparation used for feeding livestock
11. proteins that start a chemical reaction
13. to prepare the soil for planting by cutting the soil with rotating metal disks