Soil color is classified by _______.a.using a microscopeb.taking core samplesc.determining the proportion of mineralsd.using a color reference chart
Which of the following is an effect of organic matter on soil?a.improved soil structureb.decreased water retentionc.increased nutrient lossd.all of the above
Which of the following does not contribute to soil consistence?a.textureb.temperaturec.organic matterd.mineral types
Microorganisms play an important role in creating nutrient-rich soil.
Which of the following is not a way that humus affects the properties of soil?a.Humus expands with increased moisture levels.b.Humus increases the movement of water and air in soil.c.Humus decreases the porosity of soil.d.Humus acts as the basis for soil life.
How do microorganisms affect humus and thereby soil health?a.The presence of any microorganisms causes the destruction of humus, which leads to a reduction in soil health.b.Microorganisms increase the production of humus, which leads to a decrease in soil health.c.Microorganisms increase the production of humus, which leads to an increase in soil health.d.Microorganisms exist independently of humus and therefore do not affect soil health.
Microorganisms can improve soil health, but do not play a crucial role in it.
How does soil structure affect the characteristics of soil?a.It determines the acidity of soil.b.It determines the available nutrients of soil.c.It determines the pore space within soil horizons.d.It determines the amount of minerals present in soil.
Healthy soil depends on _______.a.the size of rock particlesb.oxygen contentc.moisture contentd.all of the above
Did you find these answers helpful?