Materiales naturales y sintéticos – Cierto o falso

Metals are natural materials that do not biodegrade. They can be recycled repeatedly without losing their strength, making them a sustainable resource.

Which of the following statements is true about metals?

• Metals lose strength after recycling.

• Metals cannot be recycled.

• Metals are natural and non-biodegradable.

• Metals are biodegradable.

Why are metals considered non-biodegradable?

• They do not break down naturally.

• They are only used once.

• They are man-made materials.

• They decompose quickly in nature.

What is a key property of metals regarding recycling?

• They can only be recycled once.

• They lose strength after each recycling.

• They can be recycled multiple times without losing strength.

• They become biodegradable after recycling.

How does the recyclability of metals benefit the environment?

• It reduces the need for mining new metals.

• It increases the amount of waste.

• It makes metals biodegradable.

• It decreases the strength of metals.

What happens to the strength of metals after recycling?

• It remains the same.

• It increases significantly.

• It decreases slightly.

• It becomes zero.