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1. 
Chemical additives can be incorporated during the manufacturing processes of plastics in order to...
A.
reduce production costs
B.
increase flexibility
C.
strengthen the polymers
D.
give colour to the plastics
2. 
Pigments are added during the manufacturing processes of plastics in order to...
A.
reduce production costs
B.
increase flexibility
C.
strengthen the polymers
D.
give colour to the plastics
3. 
Fibreglass is introduced to the composition of plastics in order to...
A.
reduce production costs
B.
increase flexibility
C.
strengthen the polymers
D.
give colour to the plastics
4. 
Sawdust is added to the composition of plastics in order to...
A.
reduce production costs
B.
increase flexibility
C.
give colour to the plastics
D.
improve certain features
5. 
Textile fibres are introduced during the manufacturing processes of plastics in order to...
A.
reduce production costs
B.
increase flexibility
C.
strengthen the polymers
D.
give colour to the plastics
E.
improve certain features
6. 
Paper or silica can be added to the composition of plastics in order to...
A.
reduce production costs
B.
increase flexibility
C.
strengthen the polymers
D.
give colour to the plastics
7. 
What sort of substances can be added during the manufacturing processes of plastics?
A.
Sawdust
B.
Pigments
C.
Vegetables
D.
Fibres
8. 
The majority of plastics are obtained from raw vegetable materials.
A.
True
B.
False
9. 
Plastics can be otained from natural gas
A.
True
B.
False
10. 
Latex is a plastic material
A.
True
B.
False
11. 
Which raw materials do we use to produce plastics?
A.
Natural Gas
B.
Petroleum
C.
Oil
D.
Cellulose
E.
Animal Proteins
F.
Latex
12. 
Which compounds can we use to produce plastics?
A.
Natural Gas
B.
Petroleum
C.
Oil
D.
Cellulose
E.
Animal Proteins
F.
Latex