<span>Location of the estuary, the amount & quality of fresh water flowing in and oceanic storms that have the tendency to push in more salt water are all huge causes of the amount of salt in the water of an estuary to change. </span>
Sorry but I do not understand your question
Answer:I think they would die from not doing anything.
The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.