Alternative energy sources
What are the alternative energy sources?
wind power, solar energy, geothermal energy, hydroelectric power ...
Why do we need alternative energy sources?
infinite, pollution free, burning fossil fuels, greenhouse gases
How can solar power contribute to our financial situation?
initial cost is high but it is worth it in the long run….
What are the advantages and disadvantages of a windmill?
environment friendly, renewable energy, clean, expensive, dangerous, needs a lot of space etc.
What makes alternative energy expensive?
rare, expertise, initial costs, maintenance etc.