Answer:
The change in demographics observed in developed countries in the twenty-first century was falling birth rates and longer life expectancy. Option B is correct.
The world population is growing further slowly than it used to since birth rates have been reduced in numerous countries. At the same time, life expectancies have increased considerably.
In more than 80 countries, the birth rate is below the level of 2.1 children per woman.
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One of the major problems with the League of Nations was that it was formed based off of the treaty of versailles and the Germans and the Americans therefore there was anger built into the group from the beginning
What exactly are you sad about? But whatever sadness you are feeling, know you will get through it and sadness is just a way of self expression and its okay to be sad sometimes, it just makes you a stronger person deep down, being vulnerable and sad builds your character into being a amazing person. You got this, and don’t be so hard on yourself sometimes.