What is the connection between water and energy?
Energy and water are intricately connected. All sources of energy (including electricity) require water in their production processes: the extraction of raw materials, cooling in thermal processes, in cleaning processes, cultivation of crops for biofuels, and powering turbines.
Why is it important to conserve both resources?
People need some natural resources to stay alive. They use others to make their lives better. We have to conserve our natural resources since many of them are limited. Conserve means to protect something from harm or destruction.
Hopefully with this info it can help you answer the 3rd question. :)