Answer:
He realized that the Earth's crust had been moving away on each side of oceanic ridges, down the Atlantic and Pacific oceans, that were long and volcanically active. He published his theory and it came to be called “seafloor spreading.”
c b a
Explanation:
c it wind for wind binds
a water mills
b sun for solar enegry
Western Europe's air pollution has been reduced through improved engine efficiency.
