3. Answer in one or two sentence(s): 3.1 Calculate the magnitude of pressure that will be created if a force of 90 Newton is applied to an area measuring 0.09 square metre? 3.2 What are the functions of blood ?
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Answer:
3.1 pressure= force\unit area
pressure= 90\0.09
pressure= 90×100\9
pressure= 1000 N\m² or 1000 Pascal
3.2 Blood has many different functions, including:
transporting oxygen and nutrients to the lungs and tissues.
forming blood clots to prevent excess blood loss.
carrying cells and antibodies that fight infection.
bringing waste products to the kidneys and liver, which filter and clean the blood.
regulating body temperature.
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