Answer:
Primary waves, Secondary waves and Surface waves
As far as largest, its the pacific plate. Smallest has two answers: Juan De Fuca, off the coast of the American Northwest, is the smallest major plate, but of all plates, major and minor, the smallest is the Galapagos microplate.
There are about 1.3 million gallons spilled from many things (vessels, pipelines) per year
Answer:
Strapping water heaters to wall studs and putting latches on kitchen cabinets.
Explanation: here are some examples