Question
Give any two uses of radioactive isotopes.
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Write one main function of:
Name two acids that are usually present in rain water.
Why does the amplitude of oscillation get reduced over a period of time? Explain with diagram.
State the definition of health given by WHO. Write down the traits of a healthy person.
A person of mass 50kg climbs a tower of height 72 metres. Calculate the work done. (8 = 9.8ms-2)