Respuesta :
Answer:
High level of science and technology
Good infrastructure
High level of democracy
High life expectancy level
Explanation:
All are valid
Answer:
Common characteristics of developed countries include high annual family incomes, high literacy and education rates, higher life expectancies, low birth rates, and high production. Advanced agricultural practices, such as mechanization, fertilizers, and bioengineering, increase production in these countries.
Explanation: