Instructions: select all the correct answers. which of these factors make hydrogen fuel cells a better option than burning fossil fuels? hydrogen fuel cells have a higher energy efficiency. hydrogen fuel cells create less pollution. burning fossil fuels relies on outdated devices and technology. pure hydrogen is more readily available than fossil fuels. hydrogen fuel cells are more expensive than fossil fuels.

Hydrogen fuel cells create less pollution.

Burning fossil fuels relies on outdated devices and technology.

Hydrogen fuel cells have a higher energy efficiency.

Explanation:

Hello,

The first option - Hydrogen fuel cells create less pollution - is selected due to the fact that fuel cell consists of an electrolyte sandwiched  between two electrodes, an anode and a cathode, so electrical energy is used instead of the burning of a fossil fuel which gives off pollutant gases such as carbon, nitrogen and sulfur oxides.

The second option - Burning fossil fuels relies on outdated devices and technology - is selected due to even when new technologies are being developed to enhance the extraction of energy from the combustion of fossil fuels, they are based on the same idea, combustion which contributes to pollution.

The third option - Hydrogen fuel cells have a higher energy efficiency - is selected because a typical combustion process converts the 35% of the total fuel into usable energy meanwhile the hydrogen fuel cells reach the up to the 60% or more.

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