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Oxygen is abundant in the atmosphere but it does not combine with minerals of the Earth's crust.
Q7: Igneous rock names are based on grain
Q7: The solution of calcite in a limestone
Q8: Plants, such as roots growing in cracks,
Q11: _ influences the velocity of a river
Q26: Glaciers in temperate climates may have crevasses
Q30: A nonpenetrating injury caused by blunt trauma
Q37: The Roman city of _ was destroyed
Q38: A(n) _ is a body of ground
Q43: A ridge or strip of ground separating
Q50: Movement of cobbles and boulders by rolling,