P4 bigbook 139-140

"Plaque" is:

• a) a clean and clear surface

• b) a deposit on teeth that can lead to decay

• c) a type of protective coating

• d) a shiny and smooth surface

"Floss" is used to:

• a) clean and polish floors

• b) remove food and plaque from between teeth

• c) wash and scrub dishes

• d) sanitize and disinfect surfaces

A "cavity" refers to:

• a) a hole in a tooth caused by decay

• b) a solid and intact surface

• c) a protective layer on teeth

• d) a smooth and healthy enamel

"Indigestion" is:

• a) a comfortable feeling after eating

• b) discomfort in the stomach after eating

• c) a regular and healthy digestion

• d) a smooth and easy digestion process

"Grime" is:

• a) a clean and polished surface

• b) a layer of dirt or soot

• c) a smooth and shiny texture

• d) a clear and spotless area

"Contamination" means:

• a) the process of making something clean

• b) the presence of impurities or harmful substances

• c) the removal of all toxins or pollutants

• d) the purification of an environment

A "toxin" is:

• a) a beneficial and harmless substance

• b) a harmful substance produced by living organisms

• c) a neutral and non-reactive chemical

• d) a substance that promotes health

"Cobwebs" are:

"Insecticide" is used to:

A "detergent" is: