Whats the difference between a taproot system and a fibrous root system

Fibrous roots grow from the main stem of the plant, unlike the taproot.

Plants with a taproot system are usually deep rooted and have a primary root while fibrous roots are much shorter, and are densely packed fine roots.

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.