Bioenergy - renewable energy produced by living organisms such as plants.
The primary renewable energy sources in South America are 16% bioenergy, 8% hydropower and 1% each for geothermal, solar and wind power.
Are there options to choose from?
They empowered the federal government to prevent voting rights discrimination at the state level; it also resulted in an increased number of minority voters and black participation in the political process.
On december 16th, 1846, 15 of the members of the Donner Party strapped on makeshift snowshoes and tried to walk out of the mountains to try to find help. After several days trying to find help they were left starving and on the verge of collapse.
More powerful air force radar and message decoding technologies.
The Germans made efforts to bomb Royal Air Force airfields and take out Britain's radar defense system, but the outnumbered RAF fighters managed to outmaneuver their opponents, aided by radar technology.
As for message decoding technologies, the code-cracking machine developed by Alan Turing had an impact particularly on naval battles in the Atlantic between the Germans and the Allies. Once they developed the ability to decode German messages, the British had to proceed carefully and not act on every military message or the Germans would have suspected their encoded messages were being hacked.
