Comparing and contrasting the various forms of energy. HELP!?

Question

HELP!!!!!!!!Compare and contrast the various forms of energy in terms of their availability, their cost and their impact upon the environment. Includeing the alternative sources of energy ..

Answer 1

nuclear power plant produces the most energy but the radiation kills

burning (coal, wood...etc) power plants produces the 2nd most energy but produces tones of carbon dioxide

hydro power plants produces the 3rd greatest energy but it disturb the eco-system of the environment

renewable (thermal, solar, wind, tidal) power plants produces the least energy but has basically no harm to the environment except taking up spaces...