Salinity affect plant growth

Why is having healthy soil important? Choose some reasons:

• It promotes plant growth

• Many animals , insects and plants live there

• It provides land for humans to clear and cut down trees

• It is a natural water filtration system

Complete the following sentence

________________ is the amount of salt in soil

• Salinity

• Soil salinity

What is the correct definition of water table?

• The unsaturated soil

• The saturated soil

• The place where water meets the surface soil

• None of the above

Identify a feature of silty soil 

• It is found on a bed rock

• Slippery and smooth

• Contains organic matter

• None of the above

True or false 

Photosynthesis is the process by which plants produce their own food, using sunlight energy , soil, water and carbon dioxide.

• True

• False

True or false 

Soil plays an important role in plant growth.

• True

• False

True or false 

Soil is made up of organic remains, clay and rock particles.

• True

• False

True or false 

Clay and peat are types of soil.

• True

• False

True or false 

Crop farmers do not need to know much about soil types.

• True

• False

Salinity is________________.

• A large problem in Australia.

• A small problem in Australia.