Feast upon the Earth

Test your Soil IQ

How much do you know about the soil beneath your feet, upon which your life depends?

Question Title

* 1. What is soil made of?

Rocks

Decayed plants

Minerals

Decayed animals

All of the above

Question Title

* 2. What important soil measurement determines how much water it can hold?

Temperature

Texture

Color

Consistency

All of the above

Question Title

* 3. What is another name for the layers of soil?

Levels

Stories

Horizons

Blocks

Mantles

Question Title

* 4. What is the solid mass of rock below soil called?

Organic

Topsoil

Subsoil

Parent material

Bedrock

Question Title

* 5. What layer is considered the 'B' layer of soil?

Organic

Topsoil

Subsoil

Parent material

Bedrock

Question Title

* 6. What layer is the primary layer of soil where plants and animals live?

Organic

Topsoil

Subsoil

Parent material

Bedrock

Question Title

* 7. What layer is also called the humus layer and is made up of plant remains like leaves and twigs?

Organic

Topsoil

Subsoil

Parent material

Bedrock

Question Title

* 8. What layer is called the 'C' horizon and is made up mostly of rocks?

Organic

Topsoil

Subsoil

Parent material

Bedrock

Question Title

* 9. How does soil help in supporting life on Earth?

It filters the water

It helps recycle nutrients like carbon and nitrogen

Many plants grow in the soil

Soil is home to living organisms such as bacteria

All of the above

Question Title

* 10. True or False: Soil can be over-farmed to where crops can no longer grow in it.

TRUE

FALSE