Q701775 - IBFC - 2018 - CBM-SE - Cadete do Corpo de Bombeiros

Is not correct to say that:

a) Hydrogen fuel comes from water
b) Recharger batteries with electricity from solar or wind power are very clear technology
c) Recharger batteries with electricity from solar or wind power produces more gas emission than the ethanol’s engines
d) Making Hydrogen fuel creates a lot of pollution