Because humans breathe, which means our volume changes significantly with each breath (by a few litres) but our mass stays the same. Since density is mass/volume, the density changes with every breath too.
deserts ,mines and submarines
Anywhere, they live where they lived when they were human.
You live to find a purpose.
Cold and thin air due to altitude.
They did not all live in the same country.apex
They did not all live in the same country.apex
They did not all live in the same country.apex
They did not all live in the same country.apex
They did not all live in the same country.apex
They did not all live in the same country.apex
They did not all live in the same country.apex
The human population density is highest in cities and urban areas where people live in close proximity to one another. Countries with large populations and limited land area, such as India, Bangladesh, and Japan, typically have some of the highest population densities in the world.