Answer:
lipid, fatty acid, cell membrane
protein, amino acid, enzyme
carbohydrate, sugar, starch
nucleus acid, nucleotide, DNA
Answer:
Burning fossil fuels add pollution in the air and also its not a renewable source.
Explanation:
When you burn fossil fuels (oil, Coal, And much more) chemicals can pollute the air sorrunding the area. which causes climate change and more.
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Fat, more specifically, triglyceride which are the main constituents of natural fats and oils in humans and other animals