Permafrost is a serious issue for human settlement and survival in the Far North. What causes permafrost and why does it pose problems for continuous settlement in northern Canada and Alaska?
What will be an ideal response?
Deeper soil layers below the surface do not warm up sufficiently to unfreeze in the summer, and so they are frozen year round. The frozen soil layer extends as far down as 1500 feet below the surface in some layers.
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What are two examples of geology-related environmental concerns? Briefly explain why geology
holds an important position in environmental science What will be an ideal response?
What type of rocks can usually be found in mountain stream environments?
a. Arkose b. Conglomerate c. Travertine d. Breccia e. Both b and d
The process of legally adding land area to a city is called
A) stealing. B) encroachment. C) gerrymandering. D) confiscation. E) annexation.
Zooxanthellae are autotrophic marine protists that are found in the living tissues of some simple marine invertebrates such as corals, sea anemones, and jellyfish. Zooxanthellae are ________
A) bacteria B) golden algae C) dinoflagellates D) protozoans E) foraminifera