Energy Sources

Hello everyone
We just completed and presented our energy sources project. There are nine energy sources in total, and all nine energy sources were split among the class. I got the energy source, coal, and I created a PowerPoint presentation that talks about coal and its usefulness in energy production.
Here is my PowerPoint presentation:

Energy Source Questions:
1. Describe one thing that surprised you about the energy source that you researched and presented.

One thing that surprised me about coal while I researched and presented it is how it is one of the most (if not the most) used energy sources in the world, and that about 30% is actually used efficiently.

2. Describe one thing that surprised you about an energy source that another team presented.

An energy source that was presented today that surprised me was hydro power because it is one of the oldest energy sources in the world, and that it is generally about 50% effective at creating energy.

3. Describe and defend what you believe to be the most important technological need regarding energy.

I think that the most important technological need regarding energy is solar power. It is a renewable energy because the sun will never go away, and that it is endlessly giving off solar energy that is drastically more beneficial to the planet than the use of oil or nuclear energy.