DEMOGRAPHIC CYCLE -
1. First stage -
Bhigh - Dhigh = 0
2. Second stage -
Bhigh - Dlow = Gmore
eg. Many countries of South Asia, Africa, Kanya & Bangladesh.
3. Third stage -
Bhigh - Dlow = G
eg. India, China, Singapore
4. Fourth stage -
Blow - Dlow = 0
eg. Austria, U.K., Denmark, Swedeen.