Imagine a square meter of leafy forest soil underneath an oak or maple tree. Which of the following is likely to exist within this patch of soil?
a. about a quarter of a million individuals
b. most species would be microscopic
c. about a thousand different species or organisms
d. All of the listed responses would be expected to occur within this patch of soil.
Ans: d. All of the listed responses would be expected to occur within this patch of soil.
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During combustion, the oxygen atoms of oxygen molecules
A) gain a negative charge. B) gain a positive charge. C) become oxidized. D) remain neutral.
California and Florida have the largest number of unauthorized immigrants.
Indicate whether the statement is true or false.
Humid subtropical hot summer climates in ________; typically experience ________
A) Asia; dry winters due to monsoonal conditions B) Asia; wet summers due to cyclonic storm tracks C) North America; dry winters due to cold ocean currents D) North America; wet summers due to monsoonal conditions
Most sediment is formed by ________
A) rocks that erode from the bottoms of glaciers B) settling out of a fluid C) the downhill movement of material during mass wasting D) the rapid distribution of material in a mountain stream