Which label belongs in the area marked x? radiation is x

a. must involve temperature differences between substances or objects

b. only occurs when molecules are in direct contact

c. involves the movement of fluids based on density differences

d. can occur where there is little or no matter

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.