Questions:1. For each of the following minerals: (1) describe (or diagram) the structure and provide achemical formula; (2) indicate the locations on the mineral surface where ions may beadsorbed; and (3) identify the characteristic of the mineral that results in surface charge (i.e.,how surface charge develops and where it is located).a. Vermiculiteb. Gibbsitec. Birnessited. Quartz2. Develop definitions for the following:a. Natural organic matterb. Humic acidsc. Fulvic acidsd. HuminFor each definition, also include how each would compare in terms of polyfunctionality (e.g.,hydrophobic versus hydrophilic functional groups) and elemental content.3. Strontium (Sr) is a naturally occurring element that is used by geologists to determine theorigins of sedimentary rock and also as a tracer for groundwater-surface water hydrology.Mineralized strontium is usually in the form of either strontianite (SrCO3(s)) or celestite(SrSO4(s)).