The roads that are laid with different sizes of gravel and earth are called.

Which is not an alternative resources? 

Which roads are usually seen in villages?

In traffic light red light is to

Which roads are laid on hills?

In traffic light orange light is to 

A road laid with earth are called

Which road can with stand heavy vehicle?

Where are Natural gas producing centre situated?  

Which of the following colour will be appeared on a traffic when one must go?