1. What is the name given to the type of rock from which a soil forms?
A. lichen
B. clay
C. sand
D. parent material
2. Which type of soil holds the most water?
A.sand
B.silt
C.clay
D. loam
3. Which climate has moderate rainfall, nutrient rich soils, and has a relatively thick layer of topsoil?
A.Desert
B.Grassland
C.Tropical rainforest
D. Artic