nbidushi1 nbidushi1

30-05-2022
Chemistry

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Please help me with this

Class 7

Please help me with thisClass 7 class=

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maharjanrashuu maharjanrashuu

30-05-2022

Answer:

a . Organ A is heart liquid B is blood

b. red is the colour of liquid B

c. the useful substance is oxygen and nutrients

d. carbon dioxide is the waste E

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