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