To copy the content of a letter in another letter we can dash features

ans) mobile​

Copy/Cut

Explanation:

Copy option is used to copy the text without removing it from there. To copy any text just hold the text for 2-3 seconds, then you can able to see a box(first image). From there select Copy option. Now text has been copied.

Cut option is also used to copy any text but, it will remove the text from where we have cut it. To Cut any text hold the text which you want to cut. Then, you will see a box(first image), from the box select Cut option. After selecting Cut option the text will get copied in the clipboard and the text you have cut will be removed from there.

Now, to Paste the text you have copied/cut, go to any text field and hold there for 2-3 seconds and a box(Second image) will appear. Now, select Paste option and text will get paste there.

explanation:

d. long term memory