Directions: classify the changes listed below as either physical or chemical and explain your reasoning. on the reverse side of this paper, provide two additional examples of physical changes and two additional examples of chemical changes while also explaining your reasoning.

Ill give u brainliest pls how is mass of carbon conserved during cellular respiration

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

Why is the bottom layer of a trophic pyrimid the