The sea is salty because
A. the mantle is salty.
B. rainwater is salty.
C. marine organisms manufacture salts.
D. it contains salts from Earth's crust that have been dumped into the ocean and dissolved.
Answer: D
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The ________ forms the relatively cool, brittle tectonic plates
A) asthenosphere B) eosphere C) lithosphere D) astrosphere
Give three ethical principles that can be brought to bear on "the perfect moral storm."
What will be an ideal response?
Within the tropical wet climate (Af), seasonal temperature variations are small (normally less than 3°C)
a. True b. False