C. it cannot be used again!
Oceans, rivers, valleys, mountains, plains, hills and glaciers are some examples.
Answer:
I believe it is b
Explanation:
The industrial revolution provided more jobs for people in factories for mass production, so people moved to cities to work in the factories.
Ring of Fire. The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes.
