Agriculture

2. such as tea are exported and bring in revenue for country
3. Change of fertile land into desert land.
5. The amount or number of products made per resource unit
6. Land management that includes growing trees and bushes within the farm land. Trees and bushes act as protection for the soil.
8. Severe decrease in the quality of soils; soil which is no longer suitable for farming.
9. Disaster cause by natural force rather than by human action.
11. Country in which most of the population works at developing natural resources and does not have a decent standard of living.
13. Lack of food

1. All the work through which the natural environment is transformed in order to produce plants and animals useful to humans.
4. Any source of wealth that occurs naturally, especially fossil fuels, timber, freshwater, and fertile lands.
7. Lacking (missing) water
10. Low plains on either side of a river may become flooded
12. A drought resistant grain