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