Seasonal changes have a big impact on how rivers work and how the land around them looks. This happens because of changes in rainfall and temperature. Let’s break down some key points:

1. How Much Water Flows in Rivers:

   • The amount of water in rivers can change a lot during the year. It can be different by as much as 50% because of seasonal rain.
   • When the snow melts in spring, it can make river flow increase by 20% to 30%.

2. Wearing Away Land and Moving Sand:

   • When there is more water flowing, rivers can wear away the land faster. This can increase by 60% to 80% when the water flow is at its highest.
   • Rivers can also move a lot of sand and dirt when the flow is strong. They can carry about 1,000 tons of dirt for every kilometer!

3. Changes in the Land:

   • When rivers flood during certain seasons, they can change the shape of riverbanks. This can create new features like levees (which are like walls to hold back water) and oxbow lakes (curvy lakes that form when a river changes its path).
   • If floods happen often, they can change the way river channels look. This can help create different habitats for plants and animals.

In summary, seasonal changes play a major role in how rivers flow and can reshape the land around them.