Bella, that is one of many different facts that prove the creation cannot be millions of years old.
Here's another one:
The orbit of the moon decays a certain amount every day. In other words, every day, the moon gets just a tiny bit closer to the earth. As the moon gets closer to the earth, the high tides get a tiny bit higher. This is a measured fact. Now, Since the creation is only seven to ten thousand years old, this is not a big problem. Average high tides have only changed a few inches.
HOWEVER, if the fairy-tale of 'billions and billions of years ago' were true, the moon would be so close to the earth that it would cause extremely high tides. In fact, tides would be so high that the entire surface of the earth would be flooded by the tides twice a day.