APES EXAM REVIEW | 63 Questions with 100% Correct Answers | Updated & Verified

What are the 4 major layers of the earth and the predominant elements in each layer? - Crust (oxygen), Mantle, Outer Core, Inner Core (iron); What are the three types of plate boundaries? - Convergent, Divergent, Transform) What are the two types of tectonic plates and what are they made up of? - Oceanic (basalt) and Continental (granite) What are the major horizons of Soil? What is found in each? - OA(nutrients) B(accumulated metals; iron, aluminum) CR(bedrock) How do clay, silt, and sand impact soil characteristics? - Clay holds water, Sand allows for quick percolation, silt is ideal for farming What are two abiotic factors that erode soil? - Soil is primarily eroded by water, second is wind. What are the three types of rocks? Which is most common on the surface of the earth? - Igneous, metamorphic, Sedimentary (common on surface)