How does changing the amplitude affect the sound that you
hear?

The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases. ... As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder. Relative sound intensities are often given in units named decibels (dB).

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.