Here are the matching climate change factors to their results:
1. **Rising sea levels** - **Increased frequency of floods** (Answer 1)
2. **Increasingly variable rainfall patterns** - **Extreme high air temperatures** (Answer 4)
3. **Extreme high air temperatures** - **Increased frequency of floods** (Answer 1)
To summarize:
- Rising sea levels: Increased frequency of floods
- Increasingly variable rainfall patterns: Extreme high air