Question : Identify a dark-coloured amorphous substance that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate.
Option 1: Chitin
Option 2: Humus
Option 3: Carotenoids
Option 4: Colloids
Correct Answer: Humus
Solution : The correct answer is Humus .
The dark-coloured amorphous substance that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate is most likely humus. Humus is a component of soil and is formed from the decomposition of organic matter, such as dead plants and animals.
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