What is a watershed?

A.
An area of land where all the water drains into the same place.

B.
The area around a river

C.
The area around a pond

D.
The groundwater below a river

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic