In high mountain regions bleeding through nose occurs because
One litre of cold air weighs heavier than the dry air (1 Lit) because of the
The term ‘Test Tube Baby’ implies
Decomposition of organic matter is due to
Carbohydrates, proteins and vitamins which are responsible for energy, growth and vitality are obtained respectively from
When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because
The growth of seedling plants after transplantation will not always be proper because
BCG vaccination is to be given to a new born child
An ordinary clock loses time in summer. This is because
A ball bounces higher at high altitudes than in plains. This is because
