Chapter 31: Q 18. (page 887)
List two essential macronutrients and two essential micro nutrients.
Short Answer
Macronutrients; carbon, nitrogen
micronutrients : Boron, manganese
Chapter 31: Q 18. (page 887)
List two essential macronutrients and two essential micro nutrients.
Macronutrients; carbon, nitrogen
micronutrients : Boron, manganese
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Get started for freeSoil compaction can result when soil is compressed by heavy machinery or even foot traffic. How might this compaction change the soil composition?
Describe how topography influences the characteristics and fertility of a soil.
Through mycorrhization, a plant obtains important nutrients such as ________.
a. phosphorus, zinc, and copper
b. phosphorus, zinc, and calcium
c. nickel, calcium, and zinc
d. all of the above
A soil consists of layers called ________ that taken together are called a ________.
a. soil profiles : horizon
b. horizons : soil profile
c. horizons : humus
d. humus : soil profile
The nutrient that is part of carbohydrates, proteins, and nucleic acids, and that forms biomolecules, is ________.
a. nitrogen
b. carbon
c. magnesium
d. iron
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