Differentiate Between External and Internal Validity

question 2

Essay

Differentiate between external and internal validity.

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Definitions:

Grey-Air Smog

A type of air pollution characterized by a mixture of pollutants, including particulate matter and chemicals, that gives the air a dirty, grey appearance.

Carbonic Acid

A weak acid formed when carbon dioxide is dissolved in water, it plays a crucial role in the carbon cycle and ocean acidification.

Soot Particles

Tiny, black carbon particles produced by the incomplete combustion of fossil fuels, wood, and other materials.

Smog

A type of air pollution characterized by a fog-like appearance, resulting from the reaction of sunlight with pollutants such as vehicle emissions and industrial discharges.