What are some of the most pressing environmental issues related to lumbering, fishing, and farming in the Pacific Northwest at the present time?
What will be an ideal response?
Both lumbering and fishing are threatened by overharvesting. Salmon in particular require streams to spawn in and many rivers are now dammed, cutting off salmon from their spawning streams. Farmers are threatened by population growth and urban sprawl.
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An asteroid or comet that strikes the Earth's surface is called a meteor
Indicate whether the statement is true or false
Water in the surface zone of the ocean is, for the most part, ________
A) the saltiest B) low in oxygen C) the densest D) well mixed E) the coldest
Given the prevailing wind direction indicated by the arrow, where would you expect temperatures to be warmest and the humidity lowest?
A. A B. B C. C D. D
How many electrons are there in the third shell of sodium, Na (atomic number 11)?
A. none B. one C. two D. three