Weathering and Soil

When water freezes and thaws causing rocks to weather it is called

• weathering
• ice wedging
• chemical weathering
• erosion

When rocks are worn away by glaciers it is called

• erosion

• abrasion

• cracking

• peeling

If a rock is broken down because of some chemical reaction, it is called 

• permeable weathering
• mechanical weathering
• general weathering
• chemical weathering

What type of weathering happens when plant roots break apart the soil?

• Mechanical
• Chemical
• Permeable
• General

Which type of climate will cause rapid chemical weathering

• Dry and hot

• dry and cold

• wet and hot

Which will cause faster weathering

• Less surface area 
• More surface area
• No surface area
• Surface area is not a factor

The weathering of rock starts the process of ___________ formation

• Litter

• Soil

• Garbage

• Water

These four components -
air                 water       
weathered rock            organic material
create what?

• Rock
• Silt
• Soil
• Garden waste

The decayed organic matter in soil is called

• Humus
• Pebbles
• Bedrock
• Horizon

What is another name for the A Horizon?

• Subsoil

• Weathered rock

• Bedrock

• Topsoil