I believe it’s conductivity
Comets are balls of ice and dust in orbit around the Sun. The orbits of comets are different from those of planets - they are elliptical. A comet's orbit takes it very close to the Sun and then far away again.
Answer:
the answer would be a i did the test
Explanation:
Read the paper more carefully if you don't understand it
Answer: A wave
Explanation:
Because it’s the one that’s cause the new medium to go between the two media.