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