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