two resistance r1(100+-1)ohm and r2 (100+-2) ohm are connected in parallel find the equivalent resistance with error (is upto appropriate significant figure). I will mark brainlist for correct answer, and spammer will be reported.​

What belongs in the areas marked x and y? x: the internal energy of a piston system increases as heat is added and rises to a cool area y: as thermal energy is added to a container, some of the energy is lost to the environment x: as thermal energy is added to a container, some of the energy is lost to the environment y: the internal energy of a piston system increases as heat is added and rises to a cool area x: a cold spoon placed in hot liquid gets warmer y: thermal energy is converted to light energy x: thermal energy is converted to light energy y: a cold spoon placed in hot liquid gets warmer