The annual health-care costs for people who are extremely obese are almost twice those of normal-weight people. Very sobering is the fact that severe obesity is increasing at a much faster rate than moderate obesity, quadrupling from 1986â2000.6.
As a sea is connected to the oceans, which are salt water, most seas are also salt water. This is not a distinguishing feature between a sea and a lake, however, as lakes are more commonly freshwater but can be salty depending on their source and their surroundings.
Ocean vs Lake. Oceans and lakes are large water bodies. Oceans cover a larger area than the lakes. Though Oceans and lakes are large water bodies, they have many differences which include the flora and fauna. Oceans are huge water bodies that have a high density of salt. Oceans cover about three fourths of the surface area of the earth.