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