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  1. Burning fossil fuels contributes to climate change.

    Fossil fuels are nonrenewable.

    Explanation:

    Fossil fuels are fuels formed from the remains of dead organic matters that have long been buried under the ground while hydrogen fuel cells are formed from electrochemical reactions.

    Fossil fuel burning creates pollution in the environment and some of the pollutants generated contribute to global warming and associated climate change. This is as opposed to fuel cells that generate power through electrochemical reactions and whose products can be converted for other uses.

    Also, fossil fuel deposits are finite and non-renewable. Once their deposits become exhausted, there is no way to artificially regenerate them unlike fuel cells.

  2. Burning fossil fuels contributes to climate change.

    Fossil fuels are nonrenewable.

    Explanation:

    The fossil fuels are the nonrenewable sources of energy where as the hydrogen fuel cells are the renewable sources of energy which uses the energy harnessed from the hydrogen ions to generate electricity.

    The burning of the fossil fuels to generate thermal energy can produce huge amounts of the poisonous and polluting gases liberated into the atmosphere. But the hydrogen fuel cells does not produce any polluting gas.

    Fossil fuels are non- renewable as they cannot be used again after once used. But the hydrogen fuel cells are the renewable source of energy.

  3. it is demanding to the environment

    Explanation: Emission of gases like carbon dioxide, carbon monoxide can lead to global warming, which is unbearable for both plants animal's and human.

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