The orange material that coats the base of this stream is ferric hydroxide (Fe(OH)3). It is characteristic of streams in areas polluted by acid mine drainage where oxygen-rich water comes in contact with pyrite-rich (FeS2) coal. The reaction responsible for the creation of this iron compound is an example of which of the following?

A. hydration
B. hydrolysis
C. oxidation
D. dissolution

the answer is a the king was elected to his position

c. 2,000 bce

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i only have few minutes according to the map above, which shows religious cultural regions, what two religions are most commonly practiced in africa? a. christianity and buddhism b. buddhism and hinduism c. islam and christianity d. hinduism and islam

no sé si entiendes español pero te daría la respuesta si lo supiera, pero lo siento mucho