Workers in deep mines usually suffer from dehydration because

  • A
    Water is lost due to evaporation
  • B
    Water is lost due to defecation
  • C
    Water is lost in the form of sweat
  • D
    Water is lost along with salts in the form of sweat

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Kidneys are not the only organs of excretion; their work is supplemented by

Fill in the blanks appropriately:
Organ: Excretory wastes
$(a)$ Kidneys: .......
$(b)$ Lungs: ...........
$(c)$ Liver: ...........
$(d)$ Skin: ...........

Which of the following is incorrect regarding the excretory materials excreted by the liver?

Describe the role of liver,lungs,and skin in excretion.

Sea gulls excrete excess of $NaCl$ from:

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