Podcast
Questions and Answers
What is the primary driver of the transformation from exposed rock to mature soil?
What is the primary driver of the transformation from exposed rock to mature soil?
- Climate
- Organisms
- Time
- All of the above (correct)
What is the term given to the process by which rocks are broken down to form soils?
What is the term given to the process by which rocks are broken down to form soils?
- Rock fragmentation
- Weathering (correct)
- Soilification
- Soil formation
What is the primary composition of soil?
What is the primary composition of soil?
- Rocks and geological sediments
- Minerals and organic matter
- Minerals, water, gases, organic material, and living creatures (correct)
- Water, gases, and organisms
What is the role of lichen in soil formation?
What is the role of lichen in soil formation?
What are the five factors that influence soil formation?
What are the five factors that influence soil formation?
What is the term given to the original material from which soil forms?
What is the term given to the original material from which soil forms?
What is the primary source of a soil's texture?
What is the primary source of a soil's texture?
How long does it take to form one centimetre of soil from some of the harder rocks?
How long does it take to form one centimetre of soil from some of the harder rocks?
What is the primary mechanism of physical weathering?
What is the primary mechanism of physical weathering?
What is the role of plant roots in biological weathering?
What is the role of plant roots in biological weathering?
What is the ultimate source of most of the tiny particles making up our soils?
What is the ultimate source of most of the tiny particles making up our soils?
Why is it necessary for rock to be broken down to form soil before plant life can flourish?
Why is it necessary for rock to be broken down to form soil before plant life can flourish?
