
The stationary phase of the sigmoid curve shows zero population growth.

Important Questions on Population
If any population has an equal birth rate and death rate then its age pyramid is X , vital index is Y and the population is Z .

Give appropriate biological or technical terms for the following:
The difference between the birth rate and death rate.

Number of live births per 1000 people per year.




Give biological explanations for the following:
Education is very important for population control

The phenomenon of 'demographic dividend' of a country relates to_______________.



Which one of the following statements regarding sex composition is not correct?

Give suitable biological reasons for the given statement:
The birth rate in India is very high.



Differentiate between the following pairs on the basis of what is mentioned in the brackets:
Population control and Swachh Bharat Abhiyan (One objective)


Complete the following pairs of terms taking help from the example given. Write down the complete pair.
Natality: Birth rate: ………… Death rate.



