Q: What element is typically used to shield things from gamma rays?


Read this paragraph and choose the correct option from the provided answers:

High-density materials are much more effective protection against gamma emissions than low-density ones. Gamma rays are usually blocked effectively by lead shielding. The thickness of the shielding will determine the effectiveness of the protection offered by the lead.

 Choices:

- gold

- silver

- aluminum

- lead


A:
lead