Their bark is spongy so the trees can absorb moisture from the fog, but it is up to a foot thick to protect the trees from fire.
(Their bark; is; spongy) (the trees; can absorb; moisture; from the fog) (it; is; up to a foot thick to protect the trees from fire)
Their bark the trees it
is can absorb is
spongy
moisture from the fog
up to a foot thick to protect the trees from fire