Which contain antibodies rather than substances that cause the body to produce antibodies?
Vaccine
antiserums
antibiotics
sulfa drugs
Which kill bacteria and other micro-organism and is used to fight infections are?
vaccines
Which are used to lesser pain by preventing the conduction of nerve impulses?
analgesics
anaesthetic
diuretics
anti-depressants
Which is the most abundant element in the earth's surface?
Aluminium
Oxygen
Hydrogen
Silicon
What is added to the dye bath to improve the colour fastness?
solvent
mordant
dye
binder
Which is added with mica and talc to paint to increase its reistance?
clay
sand
mud
plastic
The raw materials for the production of cement are
lime stone and clay
lime stone and concrete
lime stone and sodium
sodium and calcium
Who gave the name portland cement?
Joseph Aspdin
Joseph Priestley
Rutherford
Democritus
A type of cement used for the construction under water and repairs of canal breaches is
Slow setting
medium setting
quick setting
concrete
The mantle is composed of
silicates
carbonates
bicarbonates
chlorides
