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.
Alternatively, you can use landscape fabric. Simply remove the plastic and replace with landscape fabric. How to Kill Grass Using Vinegar Kill unwanted grass with vinegar. White or pickled vinegar is another great way to kill your grass without the use of harmful chemicals. It is safe and will not harm the environment.