Answer:
Explanation:
I'm not sure what you mean by science, but I'll assume it's physics.
A trough, non scientifically is a narrow open container for animals to eat or drink out of.
Eg: The pigs drank water out of their small metal trough.
If you mean physics then the Trough is the lowest point on a wave.
Eg: The distance between two troughs on a wave was 14cm which is its wavelength.
Hope this helps :)
