All of the following are examples of geological features except
ridges
valleys
bridges
waterfalls

The correct answer is C. bridges.  

Explanation:

This is because bridges are man-made structures; in other words, they do not occur naturally in the environment.  However, ridges, valleys, and waterfalls are present naturally due to changing environmental conditions such as variations in elevation and climate.

Hope this helps!

different routes can lead to sammy to different places, with different roads.   if you check a map, you can see the routes.   try to make connections of the places and count how many there are.   hope this : )