The Chicxulub crater is thought to be evidence of the meteor impact associated with the extinction of the dinosaurs
a. True
b. False
ANSWER: True
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In each second of fall, the distance a freely falling object will fall is
A) about 5 m. B) about 10 m. C) the same, but not 5 m or 10 m. D) increasing. E) none of the above
Why do continental glaciers generally flow more slowly than valley glaciers? What will be an ideal response?
Why do Mercury and the Moon lack an atmosphere?
A. They are so cold that all their gases have frozen into deposits below their surface. B. They formed after all the gas had been used up. C. They are so small that their gravity is too weak to retain an atmosphere. D. They formed before the solar nebula had captured any gas.
Glacial striations are
A. carved by rock fragments frozen into the ice. B. only found in till deposits. C. used to show the rate and direction of ice flow. D. All of the choices are correct.