One alternative to burning non-renewable fuels, which harm the environment, could be to burn (2 points) biomass. coal. natural gas. petroleum.

biomass

Explanation:

The alternative source of energy for burning is biomass.

The non renewable source of energy is the source which can not be re obtained. It is limited in amount and after some time, we face energy crisis. Even when we burn such sources of energy, it causes pollution, smoke, etc.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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