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