What is the source of water for hydrothermal metamorphism?
A) Groundwater percolating from the surface
B) Fluids coming off magma plutons
C) Black smokers sucking seawater into the subsurface
D) Groundwater from the surface and fluids from magma plutons
Answer: D
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The concept of human rights emerged in
A. The United States B. Europe C. Asia D. The United States and Europe
Almost all Asian countries today have net emigration, meaning they
A) have more people immigrate to their country than those that leave. B) send more people out of their country than they receive from other countries. C) are restrictive about the type of people who can enter their countries. D) are restrictive about the type of people they allow to emigrate out of their countries.
Ozone is actually a form of the element hydrogen
Indicate whether the statement is true or false
Why does the distribution of benthic biomass mimic the distribution of surface water biomass?
a) these are areas of downwelling, where surface waters sink, providing nutrients for benthic organisms b) these areas of high productivity occur in the same location because these locations have the best environment c) food for most benthic organisms sinks to the seafloor from overlying surface water d) most of these places are shallow where sunlight penetrates to the seafloor, so photosynthesis can occur both in the water column and on the seafloor e) these areas have higher temperatures that are conducive to high productivity, whether it is benthic or pelagic