Volcanoes, earthquakes and tsunamis are all caused by tectonic activity. They are the result of two plates shifting.
They were on separate landmasses, but I'm not really sure this answers the question, you should try just asking google.
Answer: its most likely b but I cant be 100 percent sure
Explanation:
Answer: a. resource
Explanation:A resource map shows where certain natural resources are found.
I have added a picture example