The most widely accepted theory of planetary formation, known as the nebular hypothesis, maintains that 4.6 billion years ago, the Solar System formed from the gravitational collapse of a giant molecular cloud which was light years across.
The disadvantages of hydroelectric energy would be the disruption of habitats, flooding, lack of sites and that sites may stop producing energy. <span>The most common type of </span>hydroelectric power<span> plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.</span>
MAPS ARE CONSTANTLY ADAPTING TO THE INFLUENCE OF WEATHER AND OTHER ISSUES
Well the U.S.A was the winning group and its allies.
Hope IT helped :D