An environmental index survey focuses on which of the following?

• A. The quality of the environment (air, noise, greenery, litter)
• B. Population growth
• C. Economic activity
• D. Weather patterns

Answer: (A)

The main idea behind an environmental index survey is to measure how good or bad the environment is in a place. It combines different environmental factors to give an overall sense of environmental quality. In practice, it looks at things like air quality, noise levels, how much greenery there is, and the amount of litter, sometimes including people’s perceptions. These components are then used to create a score or index that can be compared over areas or over time.

This is different from population growth (a demographic issue), economic activity (an economic indicator), or weather patterns (climate/meteorology). So the best choice is the one that focuses on the quality of the environment, including air, noise, greenery, and litter.