Chapter 5 Weathering, Soil, and Mass Movements

What is parent material?

• organic matter

• weahtering

• the beginning material for soil

Which is NOT a factor in the formation of soil

• Time

• porosity

• climate

• topography

Which material is an organic part of soil?

• clay

• sand

• leaves

• water

Which process occurs in chemical weathering?

• ice wedging

• abrasion

• oxidation

Which is an example of mechanical weathering

• Dissolving

• acid rain

• roots growing through rocks

Chemical weathering changes the

• layers in the rock

• the fracture of the rock

• materials found in rock to new rock

Mechanical weathering is any process that

• changes minerals into new ones

• breaks rocks into smaller pieces

• forms soil horizons

a mixture of weathered rock, decayed organic matter, minerals, water, and air

• rocks

• biota

• soil

• parent material

the weather of an area over a period of time

• climate

• topography

• soil

• biota

the remains of once-living things

• organic mater

• climate

• abrasion

• weathering