What are some of the benefits of a single language for all programming domains? Give me 3 or 4 benefits (pros not the cons)

All the individual programming language have their individual important which is specific according to the their own style of leaning the programming language and simplicity to learn. The syntax should be in proper format and follow legacy.

Some of the benefit of the single programming language for all the domain are as follows:

By using the single language, it basically reduce the complexity of the program. The compiler maintenance cost would be reduced and easy to maintain. It increases the efficiency of the code and also the compilation efficiency in the system.