The thickness of the ozone layerâthat is, the total amount of ozone in a column overheadâvaries by a large factor worldwide, being in general smaller near the equator and larger towards the poles. It also varies with season, being in general thicker during the spring and thinner during the autumn.
Report Abuse. How ever many you have-is your fleet of ships. The US Merchant Marines currently have 465 ships in their fleet. The US Navy has a fleet of 286 ships. A fleet is the total number of ships. It can be the total number of a nation, or can be a fleet of ships operating under the same ownership.
The Russian Navy has also revealed that the Russia's Black Sea Fleet will receive 30 new ships by 2020 and will become self-sufficient with its own infrastructure in the Crimean peninsula. The fleet will be updated with new warships, submarines, and auxiliary vessels within the next six years.ad'ya (Ð»Ð°Ð´ÑÑ in Russian, or sea boat) was a typical boat used by the army of Novgorod (length 30 meters with a width of five to six meters, and two or three masts, with the armament of battering rams and catapults, complement: 50 to 60 men).