What is the main difference between a resource and a reserve?, Resources can only be mined with current technology, Reserves include deposits that cannot be exploited, Resources include all material that could theoretically be exploited; reserves are the part that can be exploited now, Reserves are always larger than resources, Which factor can cause the size of reserves to increase?, Lower resource availability, A decrease in market price, A reduction in demand, Improved extraction technology, What is the cut‑off ore grade?, The average purity of all ores in a region, The highest purity of ore in a deposit, The lowest ore purity that can be exploited economically, The grade at which mining becomes impossible, What happens to the cut‑off ore grade when metal prices rise?, It falls, It rises, It stays the same, It becomes irrelevant, Which category of mineral reserves is based on geological prediction with limited extraction data?, Measured reserves, Probable reserves, Inferred reserves, Proven reserves, Which reserve category has enough information to justify further exploration?, Speculative reserves, Probable reserves, Proven reserves, Inferred reserves, Which reserve category has the highest level of certainty?, Inferred reserves, Potential reserves, Probable reserves, Proven reserves, Which geological process forms hydrothermal mineral deposits?, Cooling of lava at the surface, Biological accumulation of shells, Movement of mineral‑rich superheated water from igneous intrusions, Evaporation of seawater, Which metals are commonly deposited by hydrothermal processes?, Quartz and feldspar, Halite and gypsum, Tin, copper, lead, silver, gold, arsenic, Iron, nickel, cobalt, Which sedimentary process forms alluvial deposits?, High‑pressure alteration of mudstone, Evaporation of inland seas, Cooling of magma underground, Deposition by flowing water that sorts minerals

Resource.Reserve

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