<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.
Answer:
B. An increase in gene flow between the bird populations.
Explanation:
The unit for power in electricity should be watt. The power show how many energy transferred during a time and the SI unit would be joule per second.
The bill is charging for the amount of energy. The energy could be calculated by multiplying the power with time. In this case, the power in kilo watt will be multiplied by the duration in hour which make the kilowatt hour.
The answer is c becuse they are not identical