Consider the reaction below.
zn(s)+cu2+ (aq) —> zn2+ (aq) + cu(s)
which half reaction correctly describes the oxidation that is taking place?
zn(s) --> zn2+ (aq)+e-
zn(s)-> zn2+ (aq) + 2e-
cu2+ (aq) + 2e-- cu(s)
cu2+ (aq)+e-- cu(s)

again here

Explanation:

Collection and analysis of data indicate that constructive forces include crustal deformation, faulting, volcanic eruption and deposition of sediment, while destructive forces include weathering and erosion. I can explain how constructive and destructive forces affect the nature of landforms on Earth.

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