who came up with the theory of seafloor spreading
Seafloor spreading Earlier theories (e.g. by Alfred Wegener and Alexander du Toit) of continental drift postulated that continents "ploughed" through the sea. The idea that the seafloor itself moves (and also carries the continents with it) as it expands from a central axis was proposed by Harry Hess from Princeton University in the 1960s.[3] The theory is well accepted now, and the phenomenon is known to be caused by convection currents in the asthenosphere, which is ductile, or plastic, and the brittle lithosphere.[4][clarification needed]
Capability Maturity Model Integration Maturity Level 5 - Optimizing
If I Had My Life to Live Over The song is now a recognized standard, recorded by many artists.
The First Cut Is the Deepest The song has been widely recorded and has become a hit single for four different artists: P. P. Arnold (1967), Keith Hampshire (1973), Rod Stewart (1977), and Sheryl Crow (2003).