Answer:
Linux
Explanation:
Linux runs all of the top 500 supercomputers
The answer is Benching.
Benching and sloping are methods used to protect employees working in excavations from cave–ins. Benches are cuts in the slope that provides protection by removing material at an angle to its floor. They give the slope a stair-step appearance with emphasis on the angles; the flatter the angle, the more the protection. Benches are split into two groups: simple and multiple.
It can help you more be aware of whats going on and what you need to do.
