Which one of the following will accelerate phosphorus cycle?
1. Rainfall and storms
2. Burning of fossil fuels
3. Volcanic activity
4. Weathering of rocks
List I | List II |
A. Lichens | I. Pioneer species |
B. Invade bare area | II. Hydrosere |
C. Reed swamp stage | III. Final stable community |
D. Climax | IV. Lithosere |
List-I | List-II | ||
(a) | Carbon dissolved in oceans | (i) | 55 billion tons |
(b) | Annual fixation of carbon through photosynthesis | (ii) | 71% |
(c) | PAR captured by plants | (iii) | \(4 \times 10^3 \)kg |
(d) | Productivity of oceans | (iv) | 2 to 10% |
(a) | (b) | (c) | (d) | |
1. | (ii) | (iv) | (iii) | (i) |
2. | (iii) | (iv) | (ii) | (i) |
3. | (ii) | (iii) | (iv) | (i) |
4. | (iii) | (ii) | (i) | (iv) |