The shape of the external ear is due to____________?

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In the manufacture of banaspati ghee the gas used is __________?

A. Helium B. Hydrogen C. Oxygen D. Nitrogen...

What sub-class of neutron star is known for its extremely high magnetic field?

A. Magnetar B. Quasar C. Magneto D. Magnetta...

Rate of evaporation of petrol is greater than that of water at room temperature because:

A. petrol molecules do not have any hydrogen bond B. petrol is an organic compound C. water molecules have small size D. petrol molecules have greater size...

Which of the statements to about the Troposphere is not true?

A. It contains 85-90% of the atmosphere’s mass B. It contains nearly all the water and oxygen of the atmosphere C. It is the zone which exhibits changes in condition of weather D. It is about 350 km thick...

Which of the following has not involuntary muscles?

A. Bigestive System B. Blood Vessels C. Heart D. Brains...