The __________________ is a hard substance and is available from the Earth at the place where pine trees exist in past.(a) Lac(b) Copal(c) Shellac(d) RosinThe question was posed to me in my homework.I would like to ask this question from Defects in Painting in division Painting, Varnishing, Distempering, etc of Construction & Building Materials

The __________________ is a hard substance and is available from the E

1.	The __________________ is a hard substance and is available from the Earth at the place where pine trees exist in past.(a) Lac(b) Copal(c) Shellac(d) RosinThe question was posed to me in my homework.I would like to ask this question from Defects in Painting in division Painting, Varnishing, Distempering, etc of Construction & Building Materials
Answer» The CORRECT answer is (b) Copal To explain: Copal is a hard substance that is AVAILABLE in a variety of forms. The Lac or SHELLAC is obtained by exudation of some types of insects in India. The Rosin is obtained from Pine TREES.

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