28. What conclusion can be drawn from the information included in the article?
Answer: A
New uses for glass are constantly being discovered.
The information in the extract suggests that glass has a variety of applications and properties that can be enhanced with different additives, indicating its versatility. This implies that ongoing research and innovation could lead to new uses for glass in various fields.
A) New uses for glass are constantly being discovered.
This option is correct as the extract emphasizes the diverse applications of glass and its ability to be modified with various additives. The mention of different properties and uses, such as in cookware and optical devices, supports the idea that glass continues to evolve and find new applications.
B) Glass is no longer used in modern technology.
This option is incorrect because the extract highlights multiple contemporary uses of glass, including windows, lenses, and high-tech applications like telescopes and microscopes. Such mentions clearly contradict the notion that glass has fallen out of use in modern technology.
C) The production of glass is declining rapidly.
This option is also incorrect as the extract does not provide any evidence or suggestion of a decline in glass production. Instead, it discusses the common additives used in glass production, implying ongoing demand and production rather than a decline.
D) Glass is too brittle to be used in new applications.
This statement is incorrect because, while the extract mentions that glass is brittle, it also discusses how different additives can enhance its properties, making it suitable for various applications. The reference to boron allowing for oven-safe cookware suggests that glass can indeed be adapted for new uses despite its brittleness.
Conclusion
The correct answer, A, reflects the ongoing innovation and discovery of new applications for glass, as supported by the extract's discussion of its versatile properties and the impact of various additives. In contrast, options B, C, and D fail to align with the extract's content, which highlights the continued relevance and adaptability of glass in modern civilization.