Fortunately, most of the bubbles were too small for a person to fall clear through, and the best swamp gas bubbles formed in shallow water which had more plant growth.
(a person; to fall; clear) (the best swamp gas bubbles; formed; L:in shallow water) (shallow water; had; more plant growth)
a person the best swamp gas bubbles shallow water
to fall formed had
clear
L:in shallow water
more plant growth