The main type of rocks in the Peninsular Ranges of Southern California and Mexico is
A. flat-lying sedimentary rocks.
B. granite and metamorphic rocks that formed at depth.
C. unconsolidated sand and gravel.
D. volcanic rocks erupted from a large volcano.
Answer: B
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A changing electric field induces a changing
A. electromagnetic field. B. magnetic field. C. both of these D. neither of these
The general chemical equation for photosynthesis is shown below. Through this reaction are the oxygens of the water molecules, H2O, oxidized or reduced? 6 CO2 + 6H2O ? C6H12O6 + 6 O2
A) The oxygens of the water molecules are oxidized. B) The oxygens of the water molecules are reduced. C) The oxygens of some of these water molecules are oxidized while others are reduced. D) The oxygens of the water molecules are neither oxidized nor reduced.
How have natural resources been important in history? Provide an example of a situation in which
natural resources have altered the course of history. What will be an ideal response?
Any circle on Earth's surface that does not divide the planet into equal halves is called a(n) ____
a. hemisphere b. great circle c. quadrant d. small circle e. semicircle