HaitiLibre Quiz

Energy 2.1 WORLD

Difficulty Level: N2 Intermediate
This second intermediate-level Quiz is designed to stimulate your scientific curiosity and requires extensive general knowledge. Energy is the engine of our civilization: it redraws political boundaries, dictates economic growth and challenges technological research.Understanding current issues means deciphering the future of humanity and actively participating in the major transitions that will shape the world of tomorrow.
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Which gas, considered an energy vector of the future, is qualified as “green” when it is produced by the electrolysis of water using renewable energies?

40% of players answered correctly.

THE CORRECT ANSWER: Hydrogen

Unlike fossil fuels, hydrogen is not a primary energy source but a vector. It is described as “green” when it is extracted from water (H2O) via an electrolyser powered by carbon-free electricity (wind or solar). This method only releases oxygen.Current research focuses on reducing the cost of production and storage, because the hydrogen atom is extremely small and light. Its potential is immense for decarbonizing heavy industry (steel) and long-distance transport (trucks, ships, planes).The geopolitical issues are also major, because mastering this technology would reduce dependence on oil-exporting countries while providing a storage solution for intermittent renewable energies, radically transforming our global energy landscape.