Floating objects accidentally lost at sea are called ________.
A. jetsam
B. toxicants
C. flotsam
D. garbage patches
Answer: C
Environmental & Atmospheric Sciences
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A detrital sedimentary rock with large angular fragments is called a(n) ________
A) shale B) conglomerate C) arkose sandstone D) breccia
Environmental & Atmospheric Sciences
Which of the following amino acids absorbs UV radiation at 280 nm?
A) phenylalanine B) tryptophan C) tyrosine D) all of these
Environmental & Atmospheric Sciences
Which of the following is true of mRNA?
A) It has a fixed size of 750 nucleotides. B) It has a high concentration. C) It is a long lived molecule. D) Its nucleotide sequence is complementary to that of one strand of DNA.
Environmental & Atmospheric Sciences
By 2020, all of the following will have moved into the top three leading causes of disease worldwide except
A. pneumonia. B. heart disease. C. traffic accidents. D. depression.
Environmental & Atmospheric Sciences