A beach by another name

A.      Volcanic coast, primary

B.      Primary, glacier

C.      Primary, glacial  erosion

D.      Secondary, coastal erosion

E.       Primary, barrial island

F.       Secondary, coastal plain

G.      Secondary, costal plain

H.      Primary, nonmarine

I.        Secondary, mangrove coast

J.        Secondary, fault line coast

K.      Primary, decomposition

L.       Primary shore lines

M.    Primary coastal plain

N.     Primary, earthquakes

O.     Secondary, land erosion

P.      Secondary, wave cut beach

Q.     Secondary, land fall

R.      Primary, steep glaciers