Would the particle density of a soil high in organic matter be the same?  Higher or Lower? Why?

Describe how water molecules move into the plant from the soil. Give an example that includes the concept of water potential.

The rate at which molecules diffuse through the soil depends on the soil’s: Group of answer choices a. water content b. size and number of pores c. kinds of molecule d. temperature e) All of the above

1. Which of the following soil textures would be the best for lining the basin of a fish pond (providing an impermeable layer at the bottom so that water does not leak out)? A. silty soils, with rock particle sizes between 0.02 and 0.002 millimeters B. loamy soils, with intermediate drainage of water C. coarse soils, with rock particle sizes between 2.0 and 0.02 millimeters D. sandy soils, with very rapid drainage of water E. clay soils, with rock particle sizes less than 0.002 millimeters

Soils & Erosion 1.Describe the relationship between soil particle size and important soil characteristics (i.e., drainage andaeration). 2.What soil horizons contain the most nutrients? Why? 3.Describe the various kinds of living organisms that make up the soil community & how they interacttogether. Briefly indicate the role(s) ofeach.

What if you were designing an experiment testing the impact of different pH levels on plant growth.  What would be the levels of your independent variable and you would need to vary the pH of a factor that plants need for growth such as soil, fertilizer, or water.  What would be your dependent variable; that is, what result would you measure?

What are the four components of the total water potential in a soil and what sign does each component have? What components of the total water potential most influence water flow in soil under unsaturated and saturated conditions?

How is soil formed?

Permanent Wilting point occurs at a water concentration when Group of answer choices a. The water attached to the soil particle can’t be pulled off by the plant. b. When the soil is saturated c. All free water has drained from the soil and that remaining is held to the soil particle against gravitational pull. d) All of the above

(a) Younger plant parts/materials decompose faster compared to older more lignified plant parts/materials; (b) Materials with narrow C:N ratio will decompose more easily compared to materials with wider C:N ratio.  A. If statement A is true B. if statement B is true C. both statement A and B are true D. statement A nor B are true