A) Digestion Human bein B) Reproduction C) Respiration D) Pollination
A) 206 B) 260 C) 26 D) 2600
A) Respiration B) Reproduction C) Digestion D) Pollination
A) Caecum B) Pharynx C) Small intestine D) Anus
A) Eyes B) Skin C) Mouth D) Nose
A) Spit B) Ptyalin C) Saliva D) Maltose
A) Ptyalin B) Ileum C) Saliva D) Pancreas
A) Respiratory organ B) Transport medium C) Aerobic respiration D) Respiration medium
A) Lungs B) Gills C) Body surface D) Fins
A) Eyes B) Nose C) Skin D) Ear
A) Ordinarily B) Physically C) Substance D) Chemically
A) Atomic number B) Equation C) Mass number D) Isotopes
A) Aluming B) Sieving C) Breaking D) Boiling
A) Evaporation B) Sieving C) Filtration D) Distillation
A) Sieving B) Boiling C) Precipitation D) Fractional distillation
A) Anode B) Cathode C) Electrolytes D) Electrolysis
A) Coke B) Electrodes C) Coal D) Electrolysis
A) Fragile,hard B) Big,small C) Strong,weak D) Old,new
A) Soft coal B) Charcoal C) Brown coal D) Hard coal
A) No idea B) False C) True D) Impossible
A) Temperature of the gas B) Volume of the gas C) Number of particles in the gas D) Mass of the gas
A) Density B) Pressure C) Force D) Energy
A) Pressure by its temperature B) Volume by its mass C) Temperature by its pressure D) Mass by its volume
A) The effect depends on the size of the magnets B) They attract each other C) They become neutral D) They repel each other
A) Magnetic energy B) Mechanical vibrations C) Electrical energy D) Light energy
A) Amplitude B) Frequency C) Wavelength D) Speed
A) Force B) Friction C) Workdone D) Simple machine
A) Screw B) Wedge C) Lever D) Pulley
A) Positively charged B) Positively and negatively charged C) Charged neutrally D) Negatively charged
A) Charged neutrally B) Negatively charged C) Positively and negatively charged D) Positively charged |