Which two factors that influence weather are caused by the uneven heating of Earth's surface by sunlight?
A. The formation of ocean currents that carry cold or warm water
B. The curving of an ocean current's path as Earth rotates
C. The formation of convection currents in the atmosphere
D. The curving of an air current's path as Earth rotates

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .