Air pollution only occurs as a result of human activity.
a. true
b. false

Answer

A statement that air pollution only occurs as a result of human activity is False

Explanation

Air pollution is there is presence of harmful or excessive substances which have negative effects to human beings and other existing organisms .The presence of these substances may lead to dangerous medical conditions to human beings.

Air pollution is is mostly caused by result of burning of fuels such as coal and others to produce various types of energies such as electricity.The air pollution is not only caused by human because it also occurs naturally that means there are natural causes which include some events like when there is fire in the forest, eruption of volcano, when organic compounds are evaporating , wind erosion and also when radioactivity occurs naturally.

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".