The human brain uses__________ percent of the total oxygen and blood in the body
A Little inhalation is done through________
The ozone layer is at height of________kilometers from the surface of the Earth
The inner most part of the earth is__________
Deficiency of vitamin B1 is causes__________
Short_sight defect could be corrected by a _____________ lens
Reflex actions in head region are under the control of___________
The repetition of property after a certain interval called ___________
The study Of GLANDS is called
The distance of mercury from sun is__________
