In terms of volume and weight, the largest branch of the extractive industries is ________.
A. fossil fuel minerals
B. fertilizers
C. metallic minerals
D. earth materials
Answer: D
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Expensive homes on coastal cliffs are at risk due to
A) erosion from ocean waves. B) erosion from wind. C) erosion from groundwater. D) erosion from streams.
Common photosynthetic pigments include all of the following except ________.
A. fluorescence B. chlorophyll a C. phycoerythrin D. fucoxanthin
What is one way that polymorph minerals, such as aluminum-silicates, change from one form to another?
A) Temperature and pressure conditions change with depth, causing metamorphosis. B) They break up and change form during resedimentation. C) Other minerals join the polymorphs during contact with igneous intrusions. D) Fluid metamorphosis allows other elements to fit between the main mineral bonds.
Clays can remain suspended in a water column for decades before settling due to their small size
Indicate whether the statement is true or false