CLEAN : Trial begins for French

The video provides an overview of precious metals, explaining their significance and characteristics.

What is a defining characteristic of precious metals?

• They are abundant in nature.

• They have high economic value.

• They are always liquid at room temperature.

• They are non-conductive.

Which of the following is a common use of precious metals?

• Textile production

• Manufacturing of plastics

• Construction of buildings

• Jewelry making

Which property makes precious metals suitable for use in electronics?

• Magnetic properties

• Opacity

• Electrical conductivity

• High melting point

What is a common feature of all precious metals?

• They are all radioactive.

• They are resistant to corrosion.

• They are all synthetic.

• They are all transparent.

Why are precious metals often considered a good investment?

• They are easy to produce.

• They are always in liquid form.

• They have a stable value over time.

• They are not affected by market changes.