Match column I with column II, and choose the correct combination from the options given below.
Column II | Column II | ||
a | Gaseous nutrient cycle | 1 | Phosphorus cycle |
b | Sedimentary nutrient cycle |
2 | . Nitrogen cycle |
c | Standing crop | 3 | The amount of nutrients in soil |
d | Standing state | 4 | . Mass of living material |
Column II | Column II | ||
a | Gaseous nutrient cycle | 2 | Nitrogen cycle |
b | Sedimentary nutrient cycle |
1 | Phosphorus cycle |
c | Standing crop | 4 | Mass of living material |
d | Standing state | 3 | The amount of nutrients in soil |