| A | B |
|---|
| What is the most common group of minerals? | silicates |
| What do all the silicate minerals have? | silicon and oxygen |
| Which soil horizon contains the greatest amount of organic matter? | O horizon |
| Which soil horizon represents weathered bedrock? | C horizon |
| select the material that slows or stops movement of groundwater | aquitard (retard means to slow) |
| select the relative principle that says that the oldest layer is on the bottom | superposition |
| which of the following isotopes is used for radioactive dating? | All (thorium 232, potassium-40, uranium-235) |
| Which of the following isotopes is used for dating the remains of living organisms? | carbon-14 |
| Mass wasting is | erosion due primarily to gravity (think landslide) |
| Which of the following processes are a part of the water cycle? | runoff, storage, evaporation |
| Which of the following isotopes is commonly used to identify the remains of non-living organisms? | uranium-235,238 |
| In a solution of sugar and waterm the sugar is the | solute |
| a term for a solution with pH 7 is | neutral |
| an acid that ionizes almost completely in a solution is a | strong acid |
| which type of reaction produces salt and water? | neutralization |
| buffers help to stabilize what? | pH |
| a term that refers to the concentration of an acid or base is | pH |
| a substance that produces hydrogen ions in solution ia an | acid |
| the ____ indicates the acidity of a solution | concentration |
| the term dilute is used to refer to the ____of an acid or base | concentration |
| An organic compound that changes color in an acid or base is an | indicator |
