Predict which will experience more weathering, a rock in the Sonoran Desert in southern Arizona or the same rock on a beach in North Carolina. Please help me and also

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Idon’t know how to solve this question

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.