You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Population growth is said to be explosive when growth rate is and explain in detail?
When crude death rate is substracted from crude bih rate , the net residual is current annual grow rate exclusive of migration When the annual growth rate is > 2%, the population growth is said to be explosive Reference: Park&;s textbook of preventive and social medicine, 23rd edition, Page no: 481