12 Questions
What is the primary source of the minerals found in soil?
The type of rock substrate
What is the role of lichens and mosses in the formation of soil?
They help to disintegrate the rock substrate
What is the deepest horizon of soil closest to the bedrock?
C horizon
What is added to the rock substrate by simple organisms such as lichens and mosses?
Organic matter
What is the primary force responsible for the disintegration of rock substrate?
Weathering forces
What is the sequence of events in the formation of soil?
Disintegration of rock substrate, followed by addition of organic matter, and finally formation of the C horizon
What is the primary factor that determines the concentration of minerals in the soil?
Type of rock substrate
Which of the following is NOT a contributor to the disintegration of rock substrate?
Simple chemical reactions
What is the role of insects in the soil formation process?
Insects enrich the rock substrate with their bodies when they die
What is the nature of the C horizon in the soil?
It is the horizon closest to the bedrock
What is the sequence of events in the soil formation process?
Disintegration, organic matter addition, weathering, C horizon formation
What is the primary characteristic of the deepest horizon of soil closest to the bedrock?
It is the closest to the bedrock
Learn how soils are formed from bedrock through weathering and disintegration, and how the type of rock influences the composition of the soil. Discover the role of lichens and mosses in soil formation and how different rock substrates produce unique soil characteristics.
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