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.
Posted on 7/15/2014. Share on Facebook Share on Facebook Share on Twitter Share on Twitter Share on Pinterest Share on Pinterest. Start Slideshow. That bottle of apple cider vinegar in your kitchen cabinet is capable of so much more than adding flavor to a salad.