An autotroph is an organism capable photosynthesis or chemosynthesis through reducing carbon dioxide, fats, sugars and/or proteins in a repetitive cycle of energy production and use to support its life. these include all plants, algae and certain bacterium.
its counterpart is the heterotroph which is reliant on outside sources for their means of energy. aka tertiary consumer: animals, fungi and certain bacterium
I think the answer would be soot appears on a fireplace after a fire. I hope this helps you out! Good luck!
1. yes it is possible because some plants do not have chloroplasts like Prokaryotes. Not all plants need chloroplasts to survive
