This is the Three Gorges Dam, a hydroelectric gravity dam that spans the Yangtze River in China. Which of these is a function of dams in the water control system?
A)
Dams are used for controlling floods.
B)
Dams are used for generating hydroelectric power.
Dams increase the annual runoff available for human use.
D
Dams are used to supply irrigation and water for towns and cities.

Wind will blow from one direction to another.

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.

Visible light is located in the middle of the spectrum.