How can i find pictures for young, mature,and old rivers?

Question

Pls gimme the picures (labeled)pls.!!

Answer 1

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Pictures are in the link below!!!!

Young rivers usually occur in highland or mountainous regions and have narrow, rocky channels with many boulders. The water may form waterfalls or foam and gurgle as it rushes over the rocks. Young rivers have few tributaries.

Mature rivers are those that have reached flat land as their tributaries pour more water into them. They often become flooded during periods of heavy rain or snowmelt. Their beds tend to be muddy rather than rocky because of the sediment (particles of sand or soil) carried into them by swift-flowing streams, and the valleys through which they flow are usually fairly broad. Few waterfalls occur on mature rivers, but they may have many bends or loops as they curl across the land looking for the lowest level to follow.

A river is old near its mouth, where layers of sediment build up over time. Here, the land is wide and flat, and the water travels more smoothly than in young and mature rivers.