Option B. A man pushes a couch across the room is the answer.
Solar power because it is never ending and has no emmisions
I believe it's "pollen".
When the pollen grains are washed down into lakes/rivers, scientists can take a sample of the sediment layers and see what plants were growing at that time. They can then make inferences about the climate and how that affected the plants growing there.
Hope this helps!
convection, conduction and radiation is the correct answer because heat flows from hot to cold. The heat flows from hot objects to cold objects whether the heat transfer is occurring by convection, conduction, or radiation.
Heat flows from warmer substances to cooler substances until they reach the same temperature.
