Science, asked by rajyadav2659, 5 months ago

Sovle the MCQ.

spammers are not allowed.

spammers will be reported.

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Answers

Answered by JonathanFrancis

1

Answer:

1.Polyestrene

2.100 years

3. SiO2

Answered by prskoranga

2

Answer:

1. polyurethane or polystyrene foam

2. 100 years

3. SiO2

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