Which describes why people on earth can see light from the stars in the sky that are so far away?
a.
light from the stars is visible light and travels in longitudinal waves. longitudinal waves require a medium to travel; therefore, light is reflected off particles of matter in space to be seen on the earth.
b.
light from the stars is visible light and travels in electromagnetic waves. electromagnetic waves require a medium to travel; therefore, light is reflected off particles of matter in space to be seen on the earth.
c.
light from the stars is visible light and travels in electromagnetic waves. electromagnetic waves do not require a medium to travel; therefore, light travels through the vacuum of space to be seen on the earth.
d.
light from the stars is visible light and travels as surface to surface waves. surface waves require a medium to travel; therefore, light travels from the surface of the star to the surface of the earth.
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