Question

define economic development national income average income net attendance ratio and literacy rate

Answer 1

economic development- Economic development is the process by which a nation improves the economic, political, and social well-being of its people.

national income- the total amount of money earned within a country.

average income- Per capita income or average incomemeasures the average income earned per person in a given area

net attendance ratio- Net attendance ratio is defined as theratio of the number of persons in the official age-group attending any educational institution in a particular class-group 

literacy rate - the percentage of people who are able to read and write.