Does participation in leadership activities improve leadership skills?

Absolutely, 

additional knowledge makes someone more wiser, smarter approach on different situation. there is always room for improvement no matter how good you are. 

Yes and No. Leadership activities that are designed to stymie creativity should be avoided. Innovation does not come from a technical or controlled sources, but rather unbound possibilities. 

If you practice so much, your skills will be improved.

thanks for invitation

sure

if you practice more, your skills will be improved

Of course it makes things come to you in a shorter time .. you will have the experience so you learn from your own faults that might not be on a book.

Yes if the person is himself is a leader then only he / she can participates in leadership activities

Yes why??bec if you don't have any skills for being a leader maybe the member will not be good enough because even you yourself you don't know how to be a good leader

Yes, indeed,

 

Such participation will increase the interactions with other professionals that Leeds to enhance the decision making process. Also the magnitude of the shared ideas will leave remarkable value of knowledge both personally and professionally. The nature of the activities and the deep experience of the participants can be a corner stone and real trigger for the improvements of the leadership skills.