Why are wind and water pollinated flowers not colourful and why do they not produce nectar?

Explanation

### Step-by-Step Solution:

1. **Understanding Pollination Agents**:
- Pollination can occur through two main types of agents: biotic (living organisms) and abiotic (non-living factors).
- Biotic agents include animals such as insects, birds, and mammals, while abiotic agents include wind and water.

2. **Characteristics of Biotic Pollinated Flowers**:
- Flowers that are pollinated by biotic agents are typically colorful and produce nectar.
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