Which statements below are true? Check all that apply.
O A. Distance can be fully described with a magnitude and a unit.
B. If motion starts and stops at the same location, then the
displacement is zero.
O C. Displacement measurements must include magnitude, unit, and
direction
O D. Distance is always less than or equal to the magnitude of the
displacement

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.