Why are multiple NgModules used in angular?

There are several benefits of using multiple NgModules, some of them are mentioned below.

1. The modules help us to organize an application into associative blocks of functionality.
   
2. First one is organizing an application code. If we are putting around a lot of resource files in the default app module and see the happening.
   
3. And the second one is - It opens the possibility of lazy loading via the router.
   
4. NgModule is used to simplify the ways we define and manage the dependencies in your applications and also you can consolidate different components and services into cohesive blocks of functionality.