Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Promoted
in your opinion which is the most effective form of renewable energy known to human?
5 Answers
Relevance
- 2 decades ago
Ethenol? Could be wood but it leave greenhouse gases in the atmosphere.
Hydrogen fuel cells seems interesting. Except it's expensive to produce
- dlbalderston089Lv 52 decades ago
Solar or wind power. Neither produces any waste and both are readily available.
- 2 decades ago
things that never run out like water, ultra violet rays, hydro power sources.
- How do you think about the answers? You can sign in to vote the answer.
Still have questions? Get your answers by asking now.