Present perfect has an impact on present which is important, simple past is not like that: I did my homework. vs I have done my homework. Can I go out now? Simple past happens in a definite moment in the past that we either specify or we already know; present perfect is like time is not important. It’s the action itself that counts. I went to Brazil in 2005. vs -I’m gonna go to Brazil. -Oh cool, I’ve visited Brazil.

The different between past and present it's means ... When I do something before some times it's called past for example...I walked up early in the morning . And present means now doing something currently for example...I am eating a apple it's called a present . If the wrong any word and any sentence please correct me .

Yes! The past tense refers to things that have happened and finished in the past. E.g. I studied this morning. (This action is finished). Present perfect is used to show things that started in the past but are still happening now. E.g I've studied English for ten years (You started ten years ago but you are still studying now). We also use present perfect to talk about experiences. I have been to China. I have eaten durian. I have flown a helicopter etc. Hope this helps!