The amount of dissolved oxygen- this water quality indicator should be used to determine the acidity level of the river water which get contaminated by the discharge of waste water.
Option: B
Explanation:
Industrial effluents contaminated river water. If a industry located in the bank of the river then all its waste water will go in the river water and will pollute the fresh water. To judge the water quality of river there are several indicators but the amount of dissolved oxygen is the best indicator.
Like eutrophication refers to the rising up of phosphate level of the water which decreases the dissolved oxygen level which is harmful for aquatic life. If the dissolved oxygen level disturbed then biological oxygen demand of the water will increase and will adversely affect aquatic life.
Answer:
Melatonin
Melatonin is produced by the pineal gland in the brain.
Explanation:
Hormones of the hypothalamus include
oxytocin
prolactin
Thyroid stimulating Hormones
The action that the nurse should take after the procedure is completed concerning the remaining unit of blood is to discard the additional unit.
<h3>What is blood transfusion?</h3>
Blood transfusion is defined as the act of administration of blood and it's products to a recipient who is in need of it following a surgical or medical diagnostic procedure.
There are different types of donations which is acceptable to transfusion of which autologous transfusion is among.
This entails that the patient donates their blood for a future use and this is expected to be used on them alone.
Learn more about blood here:
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Today there are many types of Protestant Churches. ... we would now call the Roman Catholic Church - under the leadership of the Pope in Rome. ... The power of the rulers of these areas had increased in the previous century and many ... name for a council held by the Holy Roman Emperor in the German city of Worms)
Difficulty breathing, clutching the throat (hands on throat), loss of consciousness,