Decaying plants and animals buried in rock layers for over millions of years form geothermal energy.
a. True
b. False
b. False (Geothermal energy comes from the heat within the earth.)
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Zooplankton are always ________.
A. animals B. heterotrophs C. multicellular D. All of these are correct. E. None of these is correct.
Generally, the fastest and deepest ocean currents are ____
A) northern boundary currents B) eastern boundary currents C) western boundary currents D) southern boundary currents
The water conditions that produce an oligotrophic aquatic community most likely has
A) high levels of nutrients and high levels of oxygen. B) low levels of nutrients and low levels of oxygen. C) high levels of nutrients and low levels of oxygen. D) low levels of nutrients and high levels of oxygen.
A landform that was deposited by a river flow beneath a glacier is a(n):
a. esker b. drumlin c. valley train d. outwash plain