A. Can help leaders decide how to plan for the future
The most significant advantage of using renewable energy sources is that is sustainable (as a result of the fact that is renewable) and the low Greenhouse Gas Emissions.Renewable energy sources do not pollute the environment it with Co2 and other toxic gases that are produced by fossil fuels.
Answer: B. Buoyancy
Explanation: The asthenosphere exerts a buoyant force that pushes up against the lithosphere, and this force resists gravity. The theory of isostasy refers to an equilibrium in buoyancy between the lithosphere and the asthenosphere.