שאלה | During the last 60 years the size of the world's population has:

During the last 60 years the size of the world's population has:

		Slowly stabilized and in some parts of the world even declined
		Sharply increased from 3 billion people in the 1960's to over 7 billion in recent years
		Increased significantly in developing countries until the end of the 20th century and is currently declining
		Increased equally in wealthy and poor nations pushing the overall population to over 7 billion people