What is a source of energy for chemosynthesis?
a. sunlight
b. oxygen
c. electromagnetic radiation
d. carbon dioxide
e. methane
e
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____ occurs when a population is too small to sustain its role in biological communities.
A. Ecological extinction B. Local extinction C. Biological extinction D. Natural selection E. Speciation
Two stores are equally spaced in linear distance from your residence. However, you choose to shop at the store that it takes less time to reach. Your decision reflects using a temporal measure of distance that also can be called ________.
A. travel distance B. relative distance C. geographic distance D. absolute distance
What additional evidence did William Smith utilize to make his correlations?
A) fossils in different layers in the same mine B) fossils in the same layers in different mines C) chemical composition of coal seams in different mines D) chemical compositions of rock layers in the same mine
An artesian well, by definition, requires pumping because there is otherwise not enough pressure to bring the water to the surface
Indicate whether the statement is true or false