Which are common global indicators used in World data?

• A. GDP per capita, life expectancy, birth rate, death rate, literacy, and access to clean water.
• B. Population growth rate only.
• C. Temperature averages and rainfall.
• D. Number of smartphones per household.

Answer: (A)

Global development data rely on a core set of indicators that track economic activity, health, population dynamics, education, and living conditions. GDP per capita measures average economic output per person, giving a sense of how wealth is distributed on a country’s population. Life expectancy reflects overall health and longevity, while birth rate and death rate show how fast a country’s population is changing and aging. Literacy indicates education levels, and access to clean water signals the quality of basic services and living conditions. Together, these metrics form a broad, comparable picture of development that is widely collected and used in World data to compare countries and track progress over time.

The other options miss that breadth: focusing on a single metric like population growth rate is too narrow to describe overall development; climate numbers like temperature and rainfall don’t directly measure social and economic well-being; the number of smartphones per household is a technology metric that doesn’t capture health, education, or living standards as a whole.