A type of oil-base paint containing binders that form a film by oxidation or polymerization __________ is called an enamel.
A. because it exposes to air
B. in that its exposure to air
C. which they are exposed to air
D. when they are exposed to air
Answer:D
A type of oil-base paint containing binders that form a film by oxidation or polymerization __________ is called an enamel.
A. because it exposes to air B. in that its exposure to air C. which they are exposed to air D. when they are exposed to air