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