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