Food gets cooked faster in a pressure cooker because

Pressure cooker cooks food in lesser time because

In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following?

Maximum temperature inside pressure cooker depends on :

In winter you touch a log of wood and a rod of iron, you will feel rod of iron is colder because –

A glass bottle containing water tightly corked breaks when it is kept in freezer, because -