The energy released as water flows downhill from behind a dam is an example of a) hydroxyl ion formation.
b) kinetic energy
c) activation energy
d) potential energy

B, kinetic energy. water gains potential energy just before it spills over the top of a dam. the potential energy is converted into kinetic energy as water flows downhill

Sorry my friend i don't know the answer. i am just in 6th

Texture and composition are different because they are not the same aspect. texture has to do with feel and so on, where as composition is the chemical makeup which you cant touch like you can texture.