Which of the following will cause soils to appear bright red or yellow?
A. quartz minerals
B. organic material
C. iron oxide minerals
D. clay minerals
E. all of the answers listed here
Answer: C
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Describe the formation and typical characteristics of a floodplain
What will be an ideal response?
In most organisms, ________ is the most plentiful substance making up their mass
A) nitrogen B) water C) carbon dioxide D) oxygen E) solid material
When Mendel bred green-pea plants with yellow-pea plants, all the offspring had yellow peas. This means that the trait for yellow peas is
A. recessive. B. heterozygous. C. dominant. D. homozygous.
African Americans migrated out of the American South as a consequence of
A) the removal of travel visa requirements for people of color. B) increased farm mechanization leading to a decreased demand for farm labor. C) the development of better highways, allowing for rapid and efficient travel. D) increasing opportunities to work in northern coal mines and the California gold rush. E) All of these were factors influencing the migration.