Question

b. matching

1. contour

a. amount and type of nutrients

1. delta

b. without plowing or disking

1. evaporation

c. town with a harbor

1. fertility

d. removal of foreign material

1. irrigation

e. soil deposited by water

1. no - till

f. top of saturated soil

1. port

g. rain and snow

1. precipitation

h. supplemental water

1. purify

i. on the level

1. water table

j. change from liquid and gas
c. completion

1. an ______ is a water - bearing rock formation.
2. the process of creating narrow and deep trenches eroded in soil is
3. material placed on soil to break the fall of raindrops is called ____
4. alternating row crops with close - growing crops is known as ____
5. ______ s used to reduce acid in soil.
6. one inch of topsoil may be formed from bedrock in about ____
7. ______ is dead plant and animal material in soil.
8. a ______ may be planted to temporarily protect soil from erosion
9. in the united states about ______ tons of soil are worn away from
10. about ______ acres or 10 percent of the u.s. cropland is highly er

Explanation:

Answer:

(B. Matching)

1. i. On the level
2. e. Soil deposited by water
3. j. Change from liquid and gas
4. a. Amount and type of nutrients
5. h. Supplemental water
6. b. Without plowing or disking
7. c. Town with a harbor
8. g. Rain and snow
9. d. Removal of foreign material
10. f. Top of saturated soil

(C. Completion)

1. aquifer
2. gullying
3. mulch
4. strip - cropping
5. Lime
6. 1000 years
7. Humus
8. cover - crop
9. 2 billion
10. 30 million