At which lunar phase(s) are tides most pronounced (e.g., the highest high tides)?
A) first quarter
B) new Moon
C) full Moon
D) both new and full Moons
E) both first and third quarters
B) new Moon
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Ehrenfeld (119) argues that nonresources should be conserved. By this he means that conservation cannot and should not rely on economic or ecological justifications
He thinks that each species on the Earth, evolved over millions of years, is natural art, and that a species lost is permanently gone. He asks: "What sort of change in the world view would favor the conservation of nonresources? Nothing less than a rejection of the heroic, Western ethic with its implicit denial of man's biological roots and evolved structure." Comment on Ehrenfeld's ideas.
The symbol indicating the number of protons in a nucleus is N
Indicate whether the statement is true or false
The symbol indicating the mass number of a nucleus is __________
Fill in the blank(s) with correct word
The luminosity class of a star tells an astronomer:
A) whether the star is close to us or far away B) whether or not the star is surrounded by planets C) whether the star is a supergiant, a giant, or a main-sequence star D) how long ago the star formed E) none of the above