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.
  A reservoir is a man made lake whereas a lake is a result of glaciation that has changed over time and formed a U-shaped valley and the lake will be present in the v â¦ alley.     A lake is an inland body of freshwater & a reservoir is a man made (artificial) version of the same thing. A reservoir is a man made lake whereas a lake is a result of glaciation that has changed over time and formed a U-shaped valley and the lake will be present in the v â¦ alley.     A lake is an inland body of freshwater & a reservoir is a man made (artificial) version of the same thing.