The main factor in increasing the population is

Exponential growth curve is:

The carrying capacity of the Earth for the human population is estimated to be approximately:

In a population growth curve,which of the following equations represents the sigmoid growth curve?

If the population size at time $N_{t+1}$ is $1000$,and there is no immigration or emigration,and the death rate is $50\%$ less than the birth rate,and the population size $1$ year ago $(N_t)$ was $800$,what is the number of births?

The formula for exponential population growth is $:-$