Question 1
The very fine-sized, clay mineral particles move downward from the E to the B-horizon of some soils. What is this process called?
◦ leaching
◦ solifluction
◦ mass wasting
◦ eluviation
Question 2
Which term denotes the true soil above the zone of partly weathered bedrock?
◦ solum
◦ humus
◦ regolith
◦ loam