Description: An Environment API is an application programming interface that allows developers to access environmental variables and configurations of a system. These variables can include information about the runtime environment, such as the operating system configuration, user-defined environment variables, and other parameters that may influence the behavior of an application. The Environment API facilitates interaction between software and the environment in which it runs, allowing applications to adapt to different configurations and deployment environments. This is particularly useful in development, testing, and production environments, where configurations can vary significantly. Key features of an Environment API include the ability to read and modify environment variables, as well as the ability to set specific configurations for different runtime environments. Its relevance lies in the need to create flexible and configurable applications that can operate optimally under various conditions, which is essential in modern software development, where portability and adaptability are key to success.