Soil (ONLY given portions)

Soil is composed of only one layer.

• True

• False

The rotting dead matter in the soil is known as _______.

• weathering

• horizons

• humus

• soil profile

Which factor(s) influences soil formation?

• Climate

• Parent rock

• Vegetation

• All of the above

A dark soil is rich in ______.

• humus/ organic matter

• salt

• gravel

• none of these

________ soil is used to make pots, toys and statues.

• loamy

• sandy

• clayey

• all of these

Percolation rate of water is highest in the clayey soil and least in the sandy soil.

• True

• False

Soil is formed by _________ of rocks.

• weathering

• deposition

• erosion

• none of these

^checkbox:

This layer is soft, porous and can retain more water. It is called _______ or ______.

• A - horizon

• C - horizon

• topsoil

• Bedrock

________ is hard to dig with a spade.

• Bedrock

• C - horizon

• the middle layer

• B - horizon

The relative amount of sand and clay depends upon the rock from which the particles were formed, that is the _____.

• pebble

• soil

• parent rock

• B - horizon