Where to put 3rd party libs when using Maven with Tomcat?

I'm a new to Maven and I didn't find the proper answer to the following problem.

For example I have libraries that my project depends on like: log4j, connector j, servlet api, junit, struts etc. When I'm using just Tomcat I can put this jars to %CATALINA_HOME%\lib folder and use them.

But as Maven comes in I can configure pom.xml for all dependencies and their scopes.

If I do it - can I remove libs from %CATALINA_HOME%\lib folder ? If I can then how Tomcat knows where to find this 3rd party jars ?

And Is it a good practice just to have tomcat-native libs (tomcat-util, tomcat-juli, jasper etc) in %CATALINA_HOME%\lib folder and specify other libs in pom.xml ?