Soil - Quiz

The rotting dead matter in the soil is called _____________ .

• Humus

• Salt

• Sugar

• Protein

Breaking down of rocks by the action of wind and climate is called ____________ .

• Soil vegetation

• Weathering

• Cultivation

• Percolation

Water Holding capacity is the highest in ____________ soil.

• Sandy

• Clayey

• Loamy

• All of these

In addition to the rock particles , the soil contains ....

• Air and water

• Water and plants

• Minerals , organic matter , air and water

• Water , air and plants

The soil containing greater proportion of big particles is called ......

• Sandy soil

• Loamy soil

• Clayey soil

• None of these

Water can drain easily through

• Sandy soil

• Loamy soil

• Clayey soil

• All of these

The removal of land surface by water , wind or ice is known as _____________ .

• Percolation

• Erosion

• Weathering

• Cultivation

If the amount of fine and large particles is about the same , then the soil is called ________________ .

• Sandy soil

• Loamy soil

• Clayey soil

• Both (i) and (ii)

Which of the following is a step in the formation of soil ?

• Earthquakes or volcanic eruptions

• Weathering of rocks

• Addition of humus

• All are involved in the formation of soil

In which horizon of soil minerals are found ?

• A

• B

• C

• Bedrock