1. _____ is the silicate mineral least susceptible to chemical weathering on the earth's surface.
Hornblende
Augite
Calcite
Quartz
Olivine
2. Which of the following is NOT weathered to clay by weak carbonic acid? _____
A) Plagioclase
B) Ferromagnesian (Mafic) Minerals
C) Orthoclase (K Feldspar)
D) Quartz
E) Olivine
3. Physical disintegration of rocks into smaller pieces is called _____.
A) Lithification
B) Physical Weathering
C) Abrasion
D) Chemical Weathering
E) Deposition