Is the Study Experimental or Observational

question 115

Multiple Choice

Is the study experimental or observational?
-The highway department paves one section of an Interstate with Type A concrete and an adjoining section with
Type B concrete and observes how long it takes until cracks appear in each.

• A)Observational
• B)Experimental

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Definitions:

Emissions Tax

A tax imposed on companies for the amount of greenhouse gases they emit into the atmosphere.

Tradable Emissions Permit

A market-based instrument that provides economic incentives for reducing the emissions of pollutants.

Environmental Standard

Regulations and criteria set by authorities aimed at protecting the environment by controlling pollution levels and promoting sustainable practices.

Tradable Emissions Permits

Rights to emit a specific amount of a pollutant that can be bought and sold, used as a market-based approach to controlling pollution.