Unit 3 Review -Earth's surface

The geologic time scale is subdivided into

• absolute ages
• relative ages
• BC and AD
• Eras, periods, and epochs

The process by which natural forces move weathered rock and soil from one place to another is called

• soil conservation
• deposition
• abrasion
• erosion

When all the grains in a rock are large and easy to see, the rock is described as

• extrusive
• fine grained
• coarse grained
• Non-Banded

The process by which sediment settles out of the water or wind carrying it is

• Compaction
• Cementation
• Deposition
• Erosion

Heat and pressure deep beneath Earth’s surface can change any rock into

• Chemical Rock
• Gemstones
• Metamorphic Rock
• Sedimentary Rock

A marble statue is left exposed to the weather. Within a few years, the details on the statue have begun to weather away.   Which of the following likely caused this to happen?

• Acid Rain
• Oxygen in the air
• Rust
• Abrasion

When earthworms add their wastes to the soil, they are contributing to the formation of

• silt
• litter
• humus
• clay

Soil formation begins with the weathering of

• Loam
• Bedrock
• A Horizon
• Humus

In which soil layer would you find loam that is rich in humus?

• A Horizon
• B Horizon
• C Horizon
• Bedrock

The texture, or particle size, of soil determines

• Soil Fertility
• Whether the soil is topsoil or subsoil
• How much air and water the soil can hold
• All of the answers are correct