What is the difference between scientific investigations and scientific knowledge?

Scientific investigations are looking into the topic or question asked, scientfic knowledge is the knowing or understanding of the topic or question asked.

Relationships are difficult because people choose to walk away instead of having to try harder.

That result from subduction of oceanic plates beneath lighter continental plates. most of the earth's volcanoes are located around the pacific ring of fire because that the location of most of the earth's subduction zones.