Name a convenient unit to be used for measuring the Thickness of a single hair

Name a convenient unit to be used for measuring the Height of Qutab Minar

Name a convenient unit to be used for measuring the Length of a room in your house

Dobsan units are used to measure the thickness of

Name a convenient unit to be used for measuring the Distance between two cities

Name a conveinent unit to be used for measuring the following quantities: (a) Distance between two cities (b) Length of a room in your house (c) Height of Qutab Minar (d) thickness of a single hair (d) Diameter of a tea cup