1. What is Testing :- During Testing we have to ensure that Apllication/Website which is build, is working fine.
2. What is Manual Testing :- Manual Testing is done Manually by Human with positive and negative scenario to ensure that Develpoed Application/Website is working as expected compare to requirement.
3.What is Automation Testing :- Automation Testing is done by using Automation tool and script Like Selenium, Core Java, Paython, etc.