Wind rarely transports bed load thicker than fine sand, and water usually moves only pebbles, though under flood conditions it can transport boulders.
(Wind; transports; bed load thicker than fine sand; T:rarely) (water; moves; only pebbles; though under flood conditions it can transport boulders; T:usually) (it; can transport; boulders)
Wind water it
transports moves can transport
bed load thicker than fine sand T:rarely
only pebbles though under flood conditions it can transport boulders T:usually
boulders