Final answer:
JSON-LD is used in linked data to provide a structured, standardized format that is human-readable and machine-friendly, helping to improve SEO and data interoperability on the Semantic Web.
Step-by-step explanation:
JSON-LD is used to represent linked data because it provides a standardized way to add structured data to a web page, making it understandable not only to humans but also to search engines and web crawlers. The LD in JSON-LD stands for Linked Data, and it allows webmasters to explicitly indicate both the data and its context, which can improve search engine optimization (SEO) and data interoperability.
JSON-LD is a lightweight Linked Data format that is easy for humans to read and write. It's based on JavaScript Object Notation (JSON), a format that is widely used for transmitting data in web applications. JSON-LD allows data to be serialized in a way that is similar to traditional JSON but with the added context required to understand the data's relationships and semantics. This is crucial for enabling linked data, which involves exposing, sharing, and connecting pieces of data, information, and knowledge on the Semantic Web using URIs and RDF.