How electricity is generated in fossil fuel power stations

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

Which example has gravitational potential energy? a. a horse slowing down from a run b. an apple about to fall from a tree branch c. a bicycle being pedaled down a horizontal path d. beaker sitting on the floor

Asystematic approach to problem solving is called a (an)