An Arizona desert measures 50 square kilometers. A botanist recorded that there are 150 Saguaro cactus plants within the desert boundaries. What is the population density?

Population Density

The population density is 3 per square kilometers

Explanation:

Population density is defined as  population divided by total land area or water volume, as appropriate. An Arizona desert measures 50 square kilometers. A botanist recorded that there are 150 Saguaro cactus plants within the desert boundaries.

So the population density will be 150 divided by 50 which will  be 3 per square kilometers

Hence the population density is 3 per square kilometers

c. live where it’s cold and icy

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added