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