Autotrophic organisms are ________.
A. the base of the food web
B. able to photosynthesize
C. able to chemosynthesize
D. All of these are correct.
E. None of these is correct.
Answer: D
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The seafloor spreading hypothesis indicates what as the primary cause of continental movement?
a. volcanism in the ocean crust b. convergence of tectonic plates c. the formation and destruction of ocean basins d. the convection of mantle heat e. the decay of radioactive isotopes
What best describes the difference between solar thermal and photovoltaic systems?
A. solar thermal operates only during the daytime B. photovoltaic generates electricity only C. solar thermal works better in warm climates D. photovoltaic use electricity and can operate at night E. photovoltaic generates both heat and electricity
Which of the following is NOT a renewable form of energy?
a. nuclear b. wood c. solar d. water e. wind
Draw cross sections of an eroded anticline and an eroded syncline; label the youngest and the oldest rocks in each drawing. What is the difference between an anticline and a syncline?
What will be an ideal response?