Researchers working on hydrogen fuel cells hope that this could be a(n) ______ innovation, leading to a clean, renewable energy source, and reducing dependence on depleting fossil fuels with their adverse impact on the global environment.
Researchers working on hydrogen fuel cells hope that this could be a(n) disruptive innovation, leading to a clean, renewable energy source, and reducing dependence on depleting fossil fuels with their adverse impact on the global environment.
