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