Malnutrition can affect every system in the body, depending upon the cause of the malnutrition. In mild to moderate cases of malnutrition, no symptoms or signs may be evident; however, as the condition persists, the signs and symptoms will become more pronounced.
1 The mass and size of the molecules in a liquid and how closely they are packed together determine the density of the liquid. 2  Just like a solid, the density of a liquid equals the mass of the liquid divided by its volume; D = m/v.  The density of water is 1 gram per cubic centimeter.
Now, the weight of a particular volume of any substance is determined by a factor called Density. The density of any substance is the mass (in kg) of the substance posessed by unit volume( 1 cubic meter) of the substance. The Density of Water is approximately 1000Kg/m3. one Litre= 1/1000 m3. Hence converted in litre, density of water becomes 1 Kg/Litre. hence mass of 1 L of water is 1 kg.