NextMockપરીક્ષાઓ શોધો, દા.ત. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2022

UPPCS · પ્રશ્ન 134

Which of the following materials is biodegradable?

  1. Plastic cups
  2. Wool
  3. Glass bottle
  4. Aluminium foil
જવાબ બતાવો અને સમજૂતી

જવાબ: (B) Wool

સમજૂતી

Wool is a natural protein fibre broken down by microbes.