This cobble shows prominent scratches because ________
A) it was tumbled in a stream
B) it was scraped against other rocks in a glacier
C) it was blasted by wind
D) this was its shape when it was mechanically weathered from its source rock
Answer: B
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Molten rock material below the surface of the Earth:a
lithosphere d. magma b. evaporite e. lava c. mantle
Computer models of hurricanes almost always agree on their predictions of a hurricane’s
movement and evolution. a. true b. false
To determine your specific impacts on the environment, one can ________
A) measure local air pollution and its impacts on your health B) calculate the biodiversity of your local community C) calculate your ecological footprint D) determine your current water pollution impact E) measure the volume and type of all the wastes you contribute to the municipal waste stream
The effects of tsunami are amplified in bays and river mouths
a. True b. False