Soil

It is a thin layer of material covering the surface of our Earth.

• soul

• soil

• air

• water

What are the four main components of soil?

• rock particles, organic matter, water and air

• rock particles, organic matter, water and salt

• rock particles, organic matter, salt and sugar

• rock particles, organic matter, water and light

These include pebbles, sand, silt, and clay.

• air

• water

• organic matter

• rock particles

Which of these statements is correct?

• An average soil contains 45% organic matter.

• An average soil contains 25% water.

• An average soil contains 5% rock particles.

Which of these statements is NOT correct?

• Soil is very important.

• Soil consists of two main components.

• Soil consists of four main components.

Water flows through it the slowest. It holds the most water.

• sandy soil

• clay soil

• loamy soil

• humus

Water flows through it the fastest. It holds the least amount of water.

• humus

• loamy soil

• clay soil

• sandy soil

It is usually dark brown or black. It is the perfect soil texture for plant growth.

• loamy soil

• sandy soil

• clay soil

It is the "feel of the soil".

• soil texture

• soil particles

• soil softness

When the animals and plants die, they are broken down and turned into _______.

• humus

• water

• air

• fertilizer