A) suggest why the pipes are made of Copper b) suggest why the pipes and the metal backing sheet are painted black
c) Suggest why an insulating material is attached to the metal backing sheet
d) Suggest why the presence of the glass sheet increases the energy collected by the water

So are u adding some additional catalyst

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.