Loading the player... Covariance is a measure of the degree to which returns on two risky assets move in tandem. A positive covariance means that asset returns move together, while a negative covariance means returns move inversely.
1. Rotterdam (the Netherlands) This Dutch harbor was the largest in the world, until Shanghai and Singapore grew even larger in 1986. This satellite photo gives an indication of the size of the Port of Rotterdam. (Image via Mannlines) About an hour and a half to the south of Rotterdam is Antwerp, the largest port in Belgium.
Based on the area that the sea covers here we list the top 10 largest seas in the world. Scroll through the list! The Bay of Bengal is the largest bay in the world and tenth on our list of top 10 largest seas in the world. Covering an area of 2,172,000 sq. km, this triangular shaped gulf forms the northeastern part of the Indian ocean.