Soil

Q.

Define weathering.

Q.

The major source of minerals in the soil is the:

1. Parent rock from which soil is formed

2. Plants

3. Animals

4. Bacteria

Q.

A man digging a pit found that he could dig with ease initially but digging became difficult as he went deeper. He could not dig beyond a depth of 5 feet. Provide a suitable scientific explanation.

Q. Climate, , flora and fauna, altitude, and are the five major factors that contribute to soil formation.

1. time
2. parent rocks
3. weather
4. humidity

Q. Fertile agricultural soil appears deep coloured at the surface as compared to the colour one metre down. The reason for the colour of topsoil is due to:

1. Organic matter
2. Fertilizers
3. Moisture
4. Rocks

Q. is the first step in soil formation.

1. Weathering
2. Deposition
3. Topsoil formation
4. Climate change

Q. Plants obtain water and nutrients from soil.

1. True
2. False

Q. Soil is made up of what three substance

Q. Weathering of rocks would be more prominent in places with _____. (Select all that apply)

1. more extreme tempratures compared to moderate temperatures
2. moderate temperatures compared to more extreme temperatures
3. high rainfall compared to low or no rainfall
4. places with low intensity of winds compared to higher intensity winds