Zonal Soils

Question 1

What is it made of?

Answer 1

A mixture of solids, liquids and gases that occur on the land surface, characterised by layers or ability to support rooted plants

Question 2

What is the upper limit of the soil?

Answer 2

The boundary between soil and air, shallow water, live plants or plant materials that have not begun to decompose

Question 3

What is the lower boundary?

Answer 3

Less well defined and separates soil from the weathered rock layer underneath

Question 4

What are soils purpose?

Answer 4

They absorb and hold rainwater, filter and buffer potential pollutants, provide habitat for soil microbes

Question 5

What are the 5 essential functions of soils?

Answer 5

Cycling nutrients
Regulating water
Sustaining plant/animal life
Filtering potential pollutants
Physical stability

Question 6

What is a zonal soil?

Answer 6

Covering a wide geographic region, state of dynamic equilibrium