Final answer:
This question addresses the physics concepts of radiation penetration and shielding, discussing the ability of radiation to pass through materials and the use of materials to reduce radiation intensity.
Step-by-step explanation:
The statement concerns the physics concepts of penetration and shielding, which are particularly relevant in the context of radiation physics. Penetration refers to the ability of various types of radiation to pass through different materials. Shielding involves using materials to absorb or block radiation thereby reducing its intensity. The effectiveness of shielding depends on the material used, its thickness, and the type of radiation. For example, alpha particles can be blocked by a sheet of paper, while gamma rays require dense materials like lead or concrete for effective shielding.