New zealand has a population of 4,326,380 and has an area of 103,736 mi while australia has an area of 2,967,909 mi and a population of 21,905,140. calculate the population density for new zealand and australia. round the population densities to the nearest whole number.

New Zealand's population density = 4,326,380 people /103,736 mi^2 = 42 people/mi^2. Australia's population density = 21,905,140 people / 2,967,909 mi^2 = 7 people/mi^2.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

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