A(n) ____________ is a huge, rotating aggregation of stars, dust, gas, and other debris held together by gravity. Fill in the blank(s) with the appropriate word(s)
galaxy
Environmental & Atmospheric Sciences
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What type of severe weather event killed up to 35,000 people in Europe during the summer of 2003?
A) a tornado outbreak B) a flood on the Elbe River C) a heat wave D) a drought
Environmental & Atmospheric Sciences
Benthos can be all of the following except ________.
A. sessile B. autotrophic C. motile D. heterotrophic E. holoplanktonic
Environmental & Atmospheric Sciences
What generally causes earthquakes?
A. global warming B. motion of tectonic plates C. the release of radioactivity from Earth's interior D. breakup of the continents
Environmental & Atmospheric Sciences
Which of the following pairs of amino acids can form a salt bridge?
A) alanine and glutamic acid B) aspartic acid and lysine C) leucine and phenylalanine D) serine and tyrosine
Environmental & Atmospheric Sciences