Use the chart below to answer the questions: Country
Population Area
(1997 estimate) (square km)
U. S. 272,648,000 9,364,520
Romania 22,609,000 237,391
Ghana 18,339,000 237,533
Which of these countries has the greatest population density? Which has the least? Provide an explanation and proof for your answer to receive full credit. (10 points)

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Population density is basically how many people there are on average per amount of space, usually a kilometer or mile. In science, the formula for density of an object is mass divided by volume, it's basically how much stuff there is compared to how much space there is.

To calculate the population density, we take the amount people and divide by the area. We know this because this could be related back to the scientific equation of mass/volume. The people (mass) is what takes up the space or area of the country (volume).  

So, let's calculate the following population densities.

USA

272648000/9364520≈29.115 people per square km

ROMANIA

22609000/237391≈95.24 people per square km

GHANA

18339000/237533≈77.206 people per square km

The more people on average per square km, the more crowded it is and the higher the population density.

Now let's try to explain this data.

The U.S. has a low population density because there are many large states such as Alaska and Montana that have hardly any people that cause the overall population density to be very decreased.

Ghana is a small country but the people are very concentrated in a few big cities such as Accra or Kumasi, so if you spread them out it would not be as crowded as other countries.

Romania has many relatively large cities scattered all over the country, and since there are many people in different parts of the country, it has a higher population density.

According to our data and explanations, Romania has the highest population density of these countries and The United States has the lowest.

Now you know how to figure out population density in a certain area!

Have a wonderful day!

Romania has the highest population density of these countries and The United States has the lowest.

Step-by-step explanation:

To calculate the population density, we take the amount people and divide by the area.

USA

272648000 / 9364520 ≈ 29 people per square km

ROMANIA

22609000 / 237391 ≈ 95 people per square km

GHANA

18339000 / 237533 ≈ 77 people per square km

From that, we can conclude that Romania has the highest population density of these countries and The United States has the lowest.

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76