ELI5: Explain Like I'm 5

Fuel cell bus

Okay kiddo, let me explain a fuel cell bus to you in a simple way.

You know how buses run on gasoline or diesel fuel, right? Well, a fuel cell bus is a bus that runs on hydrogen gas instead. But how is hydrogen gas used as fuel, you ask?

Inside the fuel cell bus, there is a special device called a fuel cell that takes in hydrogen gas from a tank and mixes it with oxygen from the air. When this happens, the fuel cell creates electricity as a result of a chemical reaction, which then powers the bus.

Think of it like how a battery powers a toy car, but instead of needing to be recharged, the fuel cell keeps creating electricity as long as it has hydrogen and oxygen to use.

Fuel cell buses are much quieter and produce less pollution than regular buses because they don't burn any fossil fuels like gasoline or diesel. Plus, hydrogen gas is a renewable resource, which means we can keep using it without running out like we will eventually with fossil fuels.

So, a fuel cell bus is like a magic bus that can run on hydrogen gas and make electricity to power itself, while also being kinder to the environment. Cool, right?
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