2. Calcula la masa de 0,5 L de nafta (δ nafta = 0,70 g/cm3). 3. Calcula el volumen que ocupa 1 kg de alcohol (δ alcohol = 0,789 g/cm³)
5. Calcula el volumen del diamante de un quilate, si la masa de un quilate es igual a 0,020g. Dato: la densidad del diamante es 3,51g/cm3.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.