Mr. Phillips and his students are building a simple series circuit to learn about electricity. Which of the following will they need in order to demonstrate the flow of electricity through the circuit?
I. an energy source, such as a battery
II. wires than can conduct a current
III. a resistance, or receiver, such as a light bulb

A. II and III only
B. I and III only
C. I only
D. I, II, and III

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

answer: 45

explanationyou have to add as well to be it could be

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.