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.
White distilled vinegar is a popular household cleanser, effective for killing most mold, bacteria, and germs, due to its level of acidity. Cleaning with white distilled vinegar is a smart way to avoid using harsh chemicals. Youâll also be glad to know that it is environmentally friendly and very economical. Baking soda and vinegar kills all food germs and bacteria including E-coli and salmonella, naturally and safely. I've seen a lot of references on the Internet stating that vinegar mixed with baking soda is an effective way to disinfect mold, bacteria, etc.