Which is an example of an authigenic sediment?
A) Quartz sand
B) Manganese nodules
C) Volcanic dust
D) Diatomaceous earth
B
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A population of beetles in which some individuals are blue and some individuals are green evolves by chance because more alleles of one color are transmitted to the next generation than alleles of the other color
This mechanism of evolution is known as A) natural selection. B) mutation pressure. C) genetic drift. D) gene flow.
Imagine a small ecosystem of 100 by 100 meters in extent. Invent and describe a situation in which the environmental factors of moisture, wind, topography, and fire interact
What will be an ideal response?
Southern Alaska remains an area of great earthquake hazard; it is located above a subduction zone.
Answer the following statement true (T) or false (F)
Which type of erosion occurs from the contact of raindrops with sediment, thus loosening them up?
A. rill erosion B. splash erosion C. gully erosion D. overland erosion E. sheet erosion