- Dripping dissolved calcite causes a to build up on the floor of a cave
A. carbonic acid
B. weathering
C. oxidation
D. stalagmite
2. Unweathered rock that influences the texture of the soil above it
A. bedrock
B. loam
C. plates
D. top soil
4. What coal, natural gas, and petroleum are called.
A. black gold
B. oxycide
C. crude oils
D. fossil fuels
3. An area of sediment at the mouth of a river is called a .
A. delta
B. moraine
C. erosion
D. plate tectonics
