When fossil fuels are burnt, CO2 is released into the air and is taken up by plants during photosynthesis to form glucose and subsequently starch.
Fossil fuels contain a large proportion of carbon atoms. When fossil fuels are burnt, these carbon atoms are released as carbon dioxide and escape to the atmosphere as atmospheric CO2 in air.
Recall that plants take up the CO2 in air during the process of photosynthesis. This CO2 becomes combined with water in the presence of sunlight to form glucose.
This glucose is converted to starch and stored in plant tissues. This is how the carbon atom inside a fossil fuel becomes a carbon atom inside a plant.
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Answer:
very reactive
Explanation:
The alkenes and alkynes are very reactive organic compound at their double and triple bonds participating in an extensive range of reactions which can be nucleophilc, addition , free radical reactions just to mention a few.
The reason for this reactivity is the high density of electrons due to the double and triple bonds responsible for the "unsaturation"
