Question

MATCH !.. HELP PLEASE :)
1.soil and water
2.crop rotation
3.no till
4.conservationtrillage
5.strip cropping
6.conservation reserve program
7.contour farming
8.endangered species act
9.endangered species
10.wetlands
11.cooperative wildlife reaserch unit
12.environmental protection agency
13.desalination
14.wildlife restoration act
15.alley cropping
16.wilderness act
17.terracing
18.gully reclamation
19.windbreaks
20.international union for the conservation of the nature and natural resources.

a. leave crop residues on the soil to reduce soil erosion.
b. alternating cover