About what percentage of energy used in the United States comes from fossil fuels?
A. 96 percent
B. 59 percent
C. 25 percent
D. 83 percent
Answer: D
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It is believed that the allotype DRB1*_____ may confer protection against rheumatoid arthritis because it contains _____ amino acid residues at positions 70 and 71 that bind to different subsets of peptides compared with
the allotypes that confer susceptibility to this disease. a. 04:01; acidic b. 04:02; acidic c. 04:04; basic d. 04:05; basic e 04:08; acidic.
Which of the following is an activity that uses calories?
A. physical activity B. food digestion C. vital body functions D. All answer choices are correct.
Ippb ____________________ ____________________ ____________________ ____________________
Fill in the blank(s) with correct word
Which of the following does NOT make smog more likely to form?
A. high temperatures B. sunny weather C. heavy motor vehicle traffic D. strong winds