What holds metal together?
A. An electromagnetic attraction between the negatively charged metal atoms and the positively charged electrons
B. An electromagnetic attraction between two positively charged metal atoms
C. An electromagnetic attraction between two negatively charged electrons
D. An electromagnetic attraction between the positively charged metal atoms and the negatively charged electrons
Select your answer:
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Public Health and Genetic Disease › ViewA disease that has appeared in the human population for the first time or that has existed for a while, but is increasing rapidly or spreading around the world is called
A. environmental
B. pandemic
C. emerging
D. infection
Cardiovascular and Respiratory › View
alveoli become filled with trapped air
A. bronchitis
B. emphysema
C. COPD
D. asthma