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Chapter 5, lesson 2

QuestionAnswer
What is a mixture of weathered rock, decayed organic matter, mineral fragments, water and air? Soil
How much of the volume of soil is made of solid materials? Half
Soil also contains water,other liquids and what? Gases (air)
What are pores? Small holes in the soil
What fills the pores in soil? Water and gases
How can water flow through soil so easily? Because it has pores
What do you call the movement of water through pores? Porosity
The solid part of soil once -living organism is called what? Organic material
Organic matter holds water and ? Nutrients
What is inorganic matter? Soil made from materials such as rock fragments that have never been alive
How many factors are their in soil formation ? Five
What is the starting material of soil called? Parent material
What is parent material made up of? Rocks or sediments that that weathers and forms soil
The particle size and type of parent material can determine the what? Properties of soil, climate,
Can soil rapidly form in warm or cool areas? Warm areas
What is topography? The shape and steepness of the landscape
What do you call all the organisms that live in a region? Biota
Soil formation is a constant but what process? Slow
What are horizons? Layers of soil formed from the product of weathering
How many horizons are common to most soil? Three
What is the A-horizon? Soil you see when You dig a shallow hole
What is B-horizon? Soil that contains a great deal of clay materials
What is C-horizon? Soil that consists of parent material
The properties of a soil determine the best use of what? The soil
How many major soil types in the world? 12
What does soil type depend partly on? Climate
Created by: jacksterner
 

 



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