Answer 1- Young rivers are channels that are deeper than they are wide, have a very fast flow, and contain frequent waterfalls and rapids 2- Ridges are sharp, valleys are steep sided, and the landscape has maximum relief. Old age. The valley walls wear down, the river creates a broad flood plain, and begins to meander, or develop wide bends.
Explanation: Their primary prey, insects, live or fly near the shallow and outside edges of ponds and lakes. There is also less predator fish at the edges of lakes and ponds.
