Which part of a watershed plays the greatest role in water filtration

Rivers

Explanation:

Water shed is also known as drainage basin and it is a body of land that drains into a body of water.

Rivers are the largest in terms of volume of a watershed. Other watershed examples include lakes, streams and underground water.

The river has more algae and mircroorgamisms in them. These help in converting harmful substances in the water into non harmful useable substances. This process helps in the filtration of the water.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.