Tesoros de la Tierra: el oro

Gold has been used as currency for centuries and occurs naturally in various forms, such as nuggets and gold dust. It is highly valued due to its non-reactive nature, beauty, and non-toxicity. Gold is the most malleable and ductile metal, making it ideal for jewelry and electronics. However, gold is now scarce, requiring extraction from the Earth's interior.

In what form is native gold typically found in nature?

• As a liquid in underground reservoirs

• In the form of nuggets

• As a gas in the atmosphere

• In the form of large solid blocks

Why is gold considered extremely valuable compared to other metals?

• It maintains its beauty and does not oxidize

• It is abundant and easy to find

• It is highly reactive and oxidizes easily

• It is the heaviest metal known

What makes gold a popular choice for jewelry?

• Its ability to change color over time

• Its malleability and ductility

• Its high density and weight

• Its magnetic properties

What is a significant use of gold in technology?

• As a fuel source

• In the construction of buildings

• In the circuits of microchips

• As a material for making glass

Where is gold primarily extracted from today?

• From the ocean floor

• From the Earth's interior

• From the atmosphere

• From volcanic eruptions