Prelims MCQ · Geography
Consider the following table:
| Feature | Description |
|---|---|
| 1. Fringing reef | Lies close to the shore and may be separated from it by a shallow lagoon |
| 2. Barrier reef | Separated from the coast by a wider, deeper lagoon and commonly broken by navigable gaps |
| 3. Atoll | Circular reef enclosing a shallow lagoon without central land |
| 4. Seaward reef margin | Favoured by clear, oxygenated moving water and a renewed food supply |
How many rows are correctly matched?