Geologists have long recognized that earthquakes are not randomly distributed on earth but occur in concentrated areas that coincide with and provide evidence for the theory of . a) mountain ranges; fault zones. b) plate boundaries; plate tectonics. c) continental borders; supercontinents. d) areas of liquid magma; sea floor spreading.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

wha is what i will use to get my free points