What is the name of this type of fold?

What is the name of this type of fold?

What is the upward point of a fold called (A)?

What is the downward part of a fold called (B)?

What is the name for the rocks between the top and bottom of a fold (red)?

What is the angle from the horizontal called (blue)?

The imaginary line through the centre of a fold is called the...

Folds with limbs dipping at the same angle described as...

Folds with limbs dipping at different angles are described as...

When one limb gets turned over, the fold is called an...

Folds with steeply dipping limbs are described as...

Folds with a gradual change in dip at the crest/trough are described as...

Folds with gently dipping limbs are described as...

The oldest rocks in an anticline are...

The oldest rocks in a syncline are ...