Age.
Can you answer it. NO!
The difference is ones dead. Ones young and ones old
His age.
one is old and the other is new
The difference between a young and an old cheetah includes the size of the cat and the coat patterns. As the cats age, coat patterns become darker.
young children have more attitude whilst old men are like gentlemen and tend to be kinder.
Old nipples are dark brown and rather wrinkly whereas young nipples are pink or very light brown, plump and wrinkle-free!
Old stars start becoming denser and denser because the stock of hydrogen is finishing, and young ones are fully stored with hydrogen and they bright amazingly.
the western cordilleras are young fold mountains, while the appalachians are old fold mountains.
There are many couples that have an age difference. Many people dislike an age difference between couples when the couples are young. Whether and age difference between a 17 year old and a 21 year old is right or wrong is an issue to be discussed with parents. At 17, you are not legally an adult yet.
Really, really old.
Really, really old.