Answer:
fluvial wetlands
Explanation:
The earliest megafossils of land plants were thalloid organisms, which dwelt in fluvial wetlands and are found to have covered most of an early Silurian flood plain. They could only survive when the land was waterlogged.
The ecosystem makes the forest sustainable
1) Technique B
2) Because it preserves the harmless insects and targets only moth larvae
Hope this helps :)