Given this Angular root module snippet, what will happen if BrowserAnimationsModule is NOT imported?

Given this Angular root module snippet, what will happen if BrowserAnimationsModule is NOT imported?

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [AppComponent],
  imports: [BrowserModule],
  bootstrap: [AppComponent]
})
export class AppModule {}