Which among the following combinations are incorrectly matched? Optionsa Cotton - Natural polymerb Silk – Obtained from silk mothc Nylon - Obtained from petroleumd PVC – Thermosetting plasticClear Response

Which among the following combinations are incorrectly matched? Opti

1.	Which among the following combinations are incorrectly matched? Optionsa Cotton - Natural polymerb Silk – Obtained from silk mothc Nylon - Obtained from petroleumd PVC – Thermosetting plasticClear Response
Answer» The historic CONVENTION on biological diversity (The earth summit) held in Rio de Janerio was the Rio Conevention, (in 1992). It called upon all nations to take APPROPRIATE MEASURE for sustainable utilisation and CONSERVATION of biological diversity.