Answer:
The electrons where in motion
The epidermis, the top layer
The dermis, middle layer
The hypodermis, bottom layer
There you go!
Answer:
B) 0.025 
Explanation:
Solution of the problem is in picture attached,
A, a heterogeneous mixture is a mixture where all the particles are not made up of one uniform composition. you can distinguish the different particles
At the end of the reaction, the catalyst is UNCHANGED.
:)