When Ontario Hydro workers set up wires in the summer, they allow for the wires to sag as seen in the photo. Using the PTM, suggest why this might be.
PTM = The Particle Theory of Matter

Essay-alternative energy sources research sources of energy that are being developed. write a report of 350-400 words discussing the information you learned concerning the development of various energy sources and the impact that you think they will have on your life. include sources cited at the end of your report using the mla format. follow the rubric guidelines. note that wikipedia is not an appropriate resource for a research paper. worth 99