Correct Answer - Option 1 : C, B, D, A
Carbon-Nitrogen ratio:
- All organic matter is made up of substantial amounts of carbon (C) combined with lesser amounts of nitrogen (N).
- The balance of these two elements in an organism is called the carbon-to-nitrogen ratio (C: N ratio).
- The fastest way to produce fertile, sweet-smelling compost is to maintain a C: N ratio somewhere around 25 to 30 parts carbon to 1 part nitrogen, or 25-30:1.
- If the C: N ratio is too high (excess carbon), decomposition slows down.
- If the C: N ratio is too low (excess nitrogen) you will end up with a stinky pile.
Waste material |
Carbon (C) to Nitrogen (N) ratio (C: N) |
Food waste |
18:1 |
Leaves and foliage |
60:1 |
Paper |
175:1 |
Cow manure |
20:1 |
Therefore, the correct sequence of Carbon (C) to Nitrogen (N) ratio in decreasing order in organic waste material is C, B, D, A.