Why so you think complex carbohydrate molecules release more energy

The simple carbohydrates are easy to be digested such as sugar. The complex carbohydrates are not easy to digest. Therefore, complex carbohydrates require more time and energy to first break into simple carbohydrates and then into ATP (adenosine tri phosphate). These ATP molecule provides energy, hence ATP is considered as energy currency. The complex carbohydrate are basically starch and the simple carbohydrates are glucose, fructose, and sucrose etc. Hence, complex carbohydrates release more energy as compared to simple carbohydrates.

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.

this would be a math