Light is bent as it enters a tank of water from air. It is bent to a greater angle when it goes from air to a glass block. Predict what will happen as a beam of light is shone on a diamond.

I'm not sure what your asking buddy.. but i know that you can weld two peices of steel by pure force and pressure.

Iam on that question know can you tell me the answer i am realy strruglingasap

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Igot 56.55 as the anwer