Because its heavy and it was available
Bottlenecks: points where tasks accumulate and the process flow is slowed. These should be analyzed and the problem solved. Read more about bottlenecks.
Points of contact with the customer: should always be fully satisfying experiences. Monitor them, as these are the times when the customer “judges” the company.
Determine the value - adding activities: these should be improved the most. Those that do not add value should be stopped.
The shockwave from an undersea earthquake causes 'ripples' in the ocean which are very large swells. When the bottom of the swell touches land, it must build up higher to maintain it's size. Therefore when it approaches the beach, water is drawn away from the beach to compensate for the ocean depth getting shallower under the tsunami swell. More water is drawn from in front of the swell than behind due to the movement of the swell.
Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
I think it is a geocentric model