Which of the following phase transitions is/are endothermic? 1. liquid water freezing to a solid at its normal freezing point of 0.0 °c.2. the sublimation of solid carbon dioxide into the gas phase.3. gaseous sulfur dioxide condensing into a liquid at its boiling point of –10.0 °c. a) 1 only b) 2 only c) 3 only d) 1 and 2 e) 1, 2, and 3

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