Examlex
In which of the following hydrocarbons is the bond angle about the carbon atom approximately 120°?
Decline Stage
Becoming less intense, subsiding; a period of time when the symptoms of disease start to disappear.
Whooping Cough
A highly contagious respiratory disease caused by the bacterium Bordetella pertussis, characterized by severe coughing spells followed by a whooping sound.
Pertussis
A highly contagious bacterial disease also known as whooping cough, characterized by severe coughing spells.
Immunization
Becoming immune or the process of rendering a patient immune.
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