<span>Why is carbon so abundant in living things when oxygen is the most abundant element on Earth?
</span>a. Carbon atoms can bond with one another to make chains and cyclic structures whereas oxygen atoms cannot form chains or cyclic structures.<span>
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<u>Explanation:</u>
Remember, an Estuary is a term used to refer to an enclosed coastal body of slightly salty water having one or several streams or rivers flowing into it.
Found in an estuary are Nutrients (such as from decayed plants and animals) which are then released or transferred into an estuary. While the active life-forms in an estuary benefit from these nutrients during their lifetime after which when they die they become nutrients themselves.
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Fishing I think is the answer
