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