What is a continuum?

a historical timeline

a range worth no clear divisions

a process to track progress of production

a schedule

A continuum is a range worth no clear divisions

Option B

Explanation:

Continuum is studied as a mechanics to describe the phenomena relevant to the geological as well as the geophysical entity.They help us to study the pattern of earthquake and faults as well as the fluid dynamics of the lava underlying present in the Earth.The continuum as the name suggest is the process or pattern to be in continuation, therefore it can be described as the range which has no clear divisions to part it and continues to be in similar pattern.

B.a pop up at ion changes in response to a change in the environment.