answer 4 I checked online it's correct
I think is oxygen that what i think
Answer:
they send signals through the nerves. through sensory receptors to be specific
The light reflected from the surface of the Moon takes only a second to reach Earth. The Sun is more than 8 light-minutes away. And so, if the light from the nearest star (Alpha Centauri) takes more than 4 years to reach us, we're seeing that star 4 years in the past.
Answer:
C. distance between two of the numbered lines