If the continents were once joined together, rocks and mountain ranges on the margins of each should have ____
A)formed under the same conditions and in the same sequence
B)formed the same sequences but at different times
C)formed under different conditions at different times
D)formed different sequences at the same time
E)slowed down the process of continental drift
A
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Which of the following results from sunlight reflecting off ice crystals?
A. halos B. sun pillars C. crepuscular rays D. sun dogs
Striations and grooves in bedrock indicate the direction of ice movement.
Answer the following statement true (T) or false (F)
Which of the following sources contributes the least to the emission of greenhouse gases?
A) fossil fuel mining B) transportation C) agriculture D) waste disposal E) power station operation
Tectonic plates can move in opposite but parallel directions along a fault at a boundary called a ____.
A. divergent plate boundary B. convergent plate boundary C. subduction zone D. mantle fault E. transform plate boundary