1 | There is a film of mould over the bottle cap. | |
2 | That can prevent problems called black spot and mildew. | |
3 | This process is called "osmosis," and it can be deadly for bacteria and mold. | |
4 | Watering should be done in the morning. That can prevent problems called black spot and mildew. | |
5 | But as the days passed, a damp black mould began to grow on him. |