3 and 4 because the other two answers are different species.
Since hydrogen bonding is a stronger intermolecular force than van der Waals forces, more energy is required to separate the molecules of ethanol than the molecules of ethane. Thus ethanol has a higher melting point than ethane.
Answer:
The major social sciences are:
Anthropology.
Economics & Management.
History.
Human Services.
Political Science.
Psychology.
Sociology
