Which type of sediment is generated in place, on the spot where we find them?
A) terrigenous sediments
B) biogenous sediments
C) hydrogenous (or authigenic) sediments
D) cosmogenous sediments
C
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The mantle can be separated into two different portions-the lower mantle and the upper mantle. The lower mantle is
A. composed of putty that flows like molasses. B. predominantly liquid. C. rigid and cannot flow. D. completely solid due to extreme pressure that prevents rocks from melting.
Which is not a common particle size for most marine sediments?
a. Clay b. Silt c. Sand d. Pebbles
The properties of seawater at depth are determined by surface conditions in the area where the water sinks.
Answer the following statement true (T) or false (F)
?Making recycled paper produces less water pollution and less air pollution than does making paper from wood pulp.
Answer the following statement true (T) or false (F)