Final answer:
To insert a non-breaking space in Word, use the shortcut key combination Ctrl + Shift + Space. This prevents Word from breaking the line at the space.
Step-by-step explanation:
To insert a non-breaking space in Word after the space at the end of the second last line of the 4th body paragraph, you can use the shortcut key combination Ctrl + Shift + Space. This will prevent Word from automatically breaking the line at that space, ensuring that the text stays together as a single unit.
For example, if you have a long word or phrase at the end of a line, using a non-breaking space can prevent it from being split between two lines when the text is justified. This is particularly useful when you want to maintain the integrity of a URL or a hyphenated word.
It's important to note that a non-breaking space is different from a regular space. While a regular space allows Word to divide the text at that point if necessary, a non-breaking space keeps the text together without any breaks.