Researchers are going into a rain forest for three days and want to travel with minimal supplies they have laptops handheld flashlight transistor radio's digital cameras and sell phones but they will not have access to power outlets or housing which type of power cell is the best for the team to use on this trip a fuel cells because they last longer be alkaline drive sales because they last longer see alkaline draw cells because they are self-contained the fuel cells because they are self-contained

the increase of protons   hope this

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).