Which has the most inertia? a sports car going 210 mph around the track your pet dog/cat/horse/bird/fish moving at their fastest speed a cruise ship docked in a port a pebble travelling through space at 90,500,000 km/s

The answer is:

A CRUISE SHIP DOCKED IN A PORT.

Inertia is the tendency of an object to resist change a change in motion. Mass is a quantity that depends on inertia. With that definition, the only thing that is considered in terms of inertia is mass. The more mass, the more it will resist a change in motion. In short, more mass, means more inertia.

The state in which an object is moving has NO effect on inertia. No matter how fast something is moving, it would still have the same mass, or it would still have the same inertia as it did from its starting point.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

my teacher would say no s