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The Excretory system — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyThe Excretory system1 Mark
MCQ
Human urine consists of:
  • A
    $80 \%$ water, $20 \%$ solid wastes
  • B
    $80 \%$ solid, wastes $20 \%$ water
  • ✓
    $95 \%$ water, $5 \%$ soild wastes
  • D
    $90 \%$ water, $10 \%$ solid wastes
✓

Answer

Correct option: C.
$95 \%$ water, $5 \%$ soild wastes
(c) $95 \%$ water, $5 \%$ soild wastes
Explanation:
Human urine is primarily composed of about $95 \%$ of water to facilitate the excretion of soluble waste products, with the remaining $5 \%$ consisting of various solid waste substances like urea, salts, and other metabolites.

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