To describe employer and employee taxes in China as complicated is an understatement. My law firm generally advices its clients to secure bookkeeping/accounting assistance for this, just as they generally use a payroll service back in their home country.
Earthquakes are not spread evenly around the planet, but are found mostly in certain regions. In the oceans, earthquakes are found along mid-ocean ridges and in and around deep sea trenches. Earthquakes are extremely common all around the Pacific Ocean basin and often occur near volcanoes.
a rift valleyis a dip in the ocean floor a mid ocean ridge is a mountain chain formed on the ocean floor. Rift valley-divergent boundary MidOcean Ridge Convergent Boundary.