'"Firth" is a synonym for this broad mouth of a river into which the tide flows'
estuary
SCIENCE: Firth is a synonym for this broad mouth of a river into which the tide flows
"Firth" is a synonym for this broad mouth of a river into which the tide flows
"Firth" is a synonym for this broad mouth of a river into which the tide flows
SCIENC"E"
estuary
SCIENC"E"