Answer:
A gravitational singularity is a one-dimensional point which contains a huge mass in an infinitely small space.
Explanation:
A gravitational singularity lies in the center of a black hole. A gravitational singularity is a one-dimensional point which contains a huge mass in an infinitely small space. In this infinitely small space, density and gravity become infinite and the laws of physics cease to operate.
The answer is D
the civil service system helps appoint government employees.