What is the densest substance on Earth? ​

Correct option is B

The correct answer is (B) Osmium.

Explanation:

• Osmium is the densest naturally occurring substance on Earth, with a density of 22.59 g/cm³.

Incorrect Options:

• Platinum: Has a lower density (21.45 g/cm³) than osmium.
• Steel: Denser than some materials but not as dense as osmium.
• Copper: Less dense than osmium.

Information Booster:

• Osmium: A platinum group metal, used in specialized applications such as electrical contacts and fountain pen tips.
• Lightest Substance: Hydrogen, the lightest element, with an atomic number of 1.