Which is one function of a weather balloon? enables forecasts seven to 10 days in advance

measures conditions in the upper atmosphere

locates and tracks storms and follows the path of storm systems

uses mathematical equations to show what will happen if conditions change

B: measures conditions in the upper atmosphere

Explanation:

In "Hydroelectricity" we build dam in order to produce electrical energy by rotating our huge turbines. As Dam separates the division of water into two parts, It can store/prevent flooding and protect community

In short, Your Answer would be "Hydroelectric Power"

Hope this helps!