Which best describes a difference between energy transformations in power plants and dams?

only power plants use fossil fuels to transform energy.
only dams use fission to generate thermal energy.
only power plants use water to turn turbines.
only dams use mechanical energy to produce electricity.

What does the process of natural selection involve

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.