Well there are many words that can answer that. Is there a word box or hints towards the specific words? If not just say heavily.
A Chain volcano is the type of volcano formation typically be found under a convergent boundary. The correct answer is A. Chain volcanoes can be found in many places, the largest chain is located in Australia.
Answer:
migration
Explanation:
when the glaciers melt there is probably a surplus of water and so the people wouldnt want their homes to be flooded
Colorado river is your answer I believe
Gasoline, smoke from factories, oil