Which of the following is true of compasses?
Acompass magnets can only be deflected by electromagnets such as earth''s magnetic field
Bcompass magnets can be deflected by earth''s magnetic field or other permanent magnets
Ccompasses always point toward geographic north
Dcompasses detect fluctuations in convection in the matle
Acompass magnets can only be deflected by electromagnets such as earth''s magnetic field
Bcompass magnets can be deflected by earth''s magnetic field or other permanent magnets
Ccompasses always point toward geographic north
Dcompasses detect fluctuations in convection in the matle