What are the differences between metalled and unmetalled roads?

Home Work Help
1

What are the differences between metalled and unmetalled roads?

2

Metalled roads are:

  1. made of bitumen of coal, cement or concrete
  2. all wheather or season road

Unmetalled roads are:

  1. made in the absence of cement and concrete and sometimes made even of sand and laid as extended roads
  2. limits its usage in rainy season