Asap why is it important important to know about watersheds? explain well pls

Watersheds are important because the surface water features and stormwater runoff within a watershed ultimately drain to other bodies of water. It is essential to consider these downstream impacts when developing and implementing water quality protection and restoration actions.

The correct answers are:

- formed by mechanical weathering;

- grouped by size of rock fragments;

- formed when rock fragments are squeezed together;

The clastic sedimentary rocks are made out of fragments of pre-existing minerals and rocks. The term clastic comes from the word clast, which basically means fragments of geological detratus, smaller grains and chunks of rocks that have been broken off from other bigger pieces of rock, as a result of physical weathering.

These rocks are classified by their grain size, texture, clast, and cementing material composition. The size of the grains varies a lot, from clay, through silt, gravel, cobble, up to boulder sized fragments.