Which is one piece of evidence of sea floor spreading?

Fossil material

Continent material

Drilled core samples

Ocean water samples

Continent material

Explanation:

Sea floor spreading is an hypothesis that was postulated 1960 and he says that earth molten materials heaps up by the crest side of mid ridges. when the molten rock solidifies it seperate itself from the ridges. Spreading leads formation of young ocean floor and its lead to the flow of material lead to drifting apart of the continent.

Continent material