(A) Scatters blue light
(B) Reflects blue light
(C) Transmits blue light
(D) Has actual blue cover

(A) Ductility
(B) Malleability
(C) Conductivity
(D) Density

(A) Carbon dioxide
(B) Chlorofluorocarbons
(C) Nitrogen oxides
(D) Methane

(A) 63% tin and 37% lead
(B) 63% lead and 37% tin
(C) 63% tin and 37% aluminum
(D) 63% lead and 37% aluminum

(A) 20 dB
(B) 60 dB
(C) 100 dB
(D) 160 dB

(A) Increasing the length of the rod
(B) Increasing the weight of the bob
(C) Reducing the length of the rod
(D) Reducing the weight of the bob

(A) Hydrogen
(B) Helium
(C) Carbon dioxide
(D) Hydrogen Sulphide

(A) Kelvin
(B) Thomson
(C) Rutherford
(D) Becquerel

(A) reverse osmosis

(B) diffusion

(C) centrifugation

(D) dialysis

(A) Glucose
(B) Surcose
(C) Maltose
(D) Fructose