Which of the following is not a controlling factor of population density?

The abundance of a species population within its habitat is called

If there were $30$ lotus plants in a pond last year and through reproduction $10$ new plants were added, taking the current population to $40$, then the birth rate = $.........$ offspring per lotus per year.

Population size is more technically called

The shape of the pyramids reflects the growth status of the population. Identify the type of age pyramid represented below for human population.

Which of the following countries has the highest population density?