What could cause strain softening and strain hardening in a deforming rock?
What will be an ideal response?
Answer: Strain softening is promoted by growth of platy minerals, reduction in grain size, increased fluid pressure, recrystallization into newer and weaker minerals and an increase in temperature. Strain hardening may be caused by accumulation of dislocations, cementation, geometric interlocking of grains or structures and much more.
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The salinity of seawater remains constant because
A. salinity measurement technology is unreliable. B. salts are removed from seawater about as fast as they are deposited. C. salts are included in the molecular formula of seawater. D. salts no longer form in the ocean.
A group of small, lizard-like reptiles among which are the earliest known reptiles are ____
a. pelycosaurs b. thecodontians c. labyrinthodonts d. therapsids e. protorothyrids
In the state of Arizona, the use of groundwater has been aggressively managed since about 1980. Before that time, agricultural, commercial, and private demands for water were growing at levels that were not sustainable
Before water regulation of any type, demand for water in all its forms in the state of Arizona illustrated the A) need for limited access to commons. B) use of a nonrenewable resource. C) need for the preservation but not conservation of a resource. D) need for agreements such as CITES.
Explain how response to hazards can vary based upon individual differences and type of exposure. Give examples, where appropriate
What will be an ideal response?