### 1. What is Go, and what are its key features?
Go, also known as Golang, is an open-source programming language developed by Google. It is designed for systems programming and is known for its simplicity, efficiency, and strong support for concurrent programming.
**Key Features:**
- **Simplicity:** Go has a clean syntax that eliminates unnecessary complexity, making it easy to learn and read.
- **Concurrency Support:** Go has built-in