What causes the subsidence that sometimes accompanies groundwater use? What will be an ideal response?
As the water is withdrawn from pore spaces in poorly consolidated sedimentary materials, the water
pressure between grains is reduced, the weight of the overlying materials causes the grains to pack
more closely together, and the materials become compacted, resulting in subsidence of the ground.
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A block of ice down an incline has its maximum kinetic energy at
A. the bottom. B. half-way down. C. three-quarters of the way down. D. the top.
A scientific theory that seeks to understand relationships between all organisms, both alive and dead is:
a. hypothesis b. evolution c. observation d. all of the above
What are the requirements for a useful guide fossil? What will be an ideal response?
What is the role of vegetation?
What will be an ideal response?