The ________ mineral group reacts to hydrochloric acid
A) silicate
B) carbonate
C) halide
D) oxide
Answer: B
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The diagram below represents a model that the U.S. Geological Survey (USGS) uses to categorize the extent of storm surge in the coastal zone. The red arrow in this figure points to
A) the maximum height of the swash zone.
B) the highest rate of discharge from the nearest stream.
C) the radius of motion of water molecules that are part of the waves of oscillation.
D) the height of high tide.
Wind direction and speed can be determined with an aerovane
a. True b. False
When excited electrons decay to ground state, hydrogen emits along distinctive line near the visible red. An astronomer observes what appear to be hydrogen emission lines from a distant star but they are in the infrared spectral band
She concludes ________. A) the star's hydrogen emission must be being absorbed by water in the atmosphere, which then re-emits in the infrared B) her instrument needs to be recalibrated C) the star must be moving very fast toward Earth D) the star must be moving very fast away from Earth
How has the vegetation in your area been changed by human activities in the past 100 years? Have these changes caused any plants or animals to become extinct or to be placed on the endangered species list? If so, what is being done to protect them
or restore their habitat?