Answer:
I believe its D
Explanation:
To increase the effectiveness of an employee in performing a specific task.
Answer:
low-density - having low relative density or specific gravity. light - of comparatively little physical weight or density; "a light load"; "magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C" 2.
Singapore finally became self-governing in 1965 (D).
It is called seismic waves. That should help:)