Match the following:
| Column A | Column B |
| I.Carbon Cycle | a) Nutrient cycling in ecosystems |
| II.Nitrogen Fixation | b) Conversion of nitrogen gas into ammonia |
| III.Greenhouse Effect | c) Trapping of heat by greenhouse gases |
| IV. Eutrophication | d) Excessive nutrient loading in water bodies |
Which of the following is the correct match?
1
I-a, II-b, III-c, IV-d.
2
I-b, II-a, III-c, IV-d.
3
I-c, II-b, III-a, IV-d.
4
I-d, II-b, III-c, IV-a.