They do this for the same reason passenger take two or more planes to reach their final destination. Large ships carrying 4200+ containers transport them across large distances, such as oceans. It is not efficient for them to make many stops for each shipment of containers. The containers are offloaded at large ports and are loaded on smaller feeder ships, carrying around 1000 containers which travel to the final destinations.
too many
See How_many_times_a_year_do_ships_sink
There are literally thousands of types of model ships available. Every age, varieties, and brands of ships and boats exist as model ships for purchase online and in hobby stores.
900
about a 100 basket-ball sized satelittes fall every year.
How many containers do you need to make a smoothie
Every 28 years
Many thousands of them, possibly millions, fall every day.
how many containers arrive daily in Long Beach California
29.5 on every fall of de year
8