Parapet.
A flat surface that extends forever is a plane
A plane.
A bassoon has exactly a three octave range. The range extends from a low B-flat below the bass clef staff, the B-flat-1 on a piano, and goes up to the B-flat-4 above middle C.
A bassoon has exactly a three octave range. The range extends from a low B-flat below the bass clef staff, the B-flat-1 on a piano, and goes up to the B-flat-4 above middle C.
A plane
It is a plane that extends indefinitely in all directions. It is very easy to remember just think about what flys in the air and needs to land on a "flat surface that extends indefinitely in all directions" (the ground).
A plane =)
A plane
A plane
Plane
plane
A plane.