A. Earth, Moon, Sun , because the earth is in front of the moon and the moonis in front of the sun blocking it a little bit.
Answer:
A) Periodic time
Explanation:
Wavelength is the distance from a point on a wave to the same point on an adjacent wave
Wave speed is the speed the wave is travelling at
Wave frequency is how many waves pass a fixed point in a given time period
D. Dyspareunia
I would say d because dyspareunia means painful sex so endometriosis, cyst, pelvic infections, and allergic reactions can all cause this.
