Meanings:

1.  Clayey : fine particles is  higher in the soil.

2.  Humus : rotting dead matter in the soil .

3.  Weathering : break down of rocks by nature.

4.  Soil profile : different layers of the soil.

5.  Loamy : mixture of sand ,clay and silt.

6.  Procolation : seeping of water through the soil.

7.  Moisture : amount of water vapour present.

8.  Sandy : soil containing greater proportion of big particles.

9.  Water retention : capacity of a soil to absorb water.

10.  Horizons : different layers of soil.