Great white sharks. Trophic Pyramid Information that is in video: An ecological pyramid (also trophic pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or biomass productivity at each trophic level in a given ecosystem.
The risk is that you may not be able to remove all the acid and if it is left on the metal it will continue to corrode the metal. So to give you a quick answer, you can use vinegar to etch the aluminum, but you have to rinse the surface thoroughly to remove all the acid residue.
Using vinegar for wood floors is the biggest myth ever. Vinegar is acidic and will easily damage wood and most finishes. Never, ever under any circumstances use vinegar with anything to clean your wood floors. Put it on your salads â not on your wood floors. The care and maintenance of new and old hardwood floors is a subject of great interest among homeowners.