Soil and weathering quiz

A layer of soil with properties that differ from other layers

• weathering

• humus

• soil horizon

• soil profile

Natural forces breaking down rocks.

• weathering

• humus

• soil horizon

• soil profile

Soil horizons in a specific location.

• weathering

• humus

• soil horizon

• soil profile

Decayed organic matter.

• weathering

• humus

• soil horizon

• soil profile

A cat digs and scratches a rock. This is an example of____.

• ice wedging

• animal actions

• abrasion

• pressure release

Wind blows some dirt against a rock and breaks off parts of the rock. This is an example of_____.

• abrasion

• pressure release

• plant root growth

• ice wedging

Water freezes in a crack on a rock. It expands and makes the crack bigger. This is an example of _____.

• abrasion

• plant root growth

• ice wedging

• animal actions

Chemical weathering ______.

• does not change the mineral composition of rocks.

• changes the mineral composition of rocks.

• has no effect on rocks.

Two examples of chemical weathering include ____.

• dissolving and rusting

• rusting and ice wedging

• dissolving and animal actions

• bonding and luster

Acid rain is an example of _____.

• mechanical weathering

• chemical weathering