NDA2021General AbilityGeneral ScienceActual
Cinnabar is an ore of which one of the following?
Options
- ACopper
- BZinc
- CMercury
- DManganese
Correct answer
C. Mercury
Step-by-step solution
The cinnabar is a mercury sulfide mineral and is the primary source of mercury. Mercury is a naturally occurring metallic element and is often found in air, water, and soil in variable amounts. Exposure to mercury, even in small amounts, may cause serious health problems and is a threat to the normal development of children.