The story assumes that many layers of reality exist, the higher the layer the more powerful it is.

In addition, weak layers of mudstone exist within the sequence.

In fact, a marine layer can exist with virtually no cloudiness of any kind, although it usually does contain some.

Minor marine layers exist in this thick rock unit (up to 10,000 feet).

Therefore, an electrical double layer exists between the wall of channel and the solution.

This layer wouldn't exist without the sun.

How many intermediate protective layers existed, where they were, or what they were like, nobody knew.

By 1997, no farms and no layers existed.

Within real systems such "layers" do not actually exist.

The active layer exists as frozen ground for long periods and melts in the spring thaw.