Ecosystems can be changing all the time, but they also dont have to be changing
Music is always changing.
The Coast Is Always Changing was created on 2004-11-22.
The capabilities and available resources of the enemy are always changing.
Always changing
gravity
always changing
It is always changing
Fluctuate.
The direction of the object's velocity is always changing as it moves in a circular path.
Because people are always finding more elements!
the y variable always changes and x is constant
the brain