What best explains why confined aquifers make for a safer water supply compared to unconfined aquifers?
A. confined aquifers do not have an overlying aquitard for protection.
B. confined aquifers have greater water pressure.
C. unconfined aquifers have greater water pressure.
D. the water in confined aquifers is naturally filtered.
E. unconfined aquifers are open to the surface environment.
Answer: E
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The landscape-as-text concept
A) holds that some people actively shape the landscape. B) was developed by Carl Sauer and Sallie Marston. C) is dependent upon geographical publishers. D) argues that landscapes can produce meaning, but can't communicate meaning. E) requires understanding the grammar of geography–place identification.
On this southern continent, which side has a plate boundary?
A) The left (west) side
B) The right (east) side
C) Both sides
D) Neither side
Rocks that crystallized deep within the earth over long periods of time would most likely have:
a. phaneritic texture b. aphanitic texture c. vesicular texture d. porphyritic texture
How many unpaired electrons are present in an oxygen molecule?
A) 0 B) 1 C) 2 D) 4