Which of the following is an example of a weather event?
the hurricane season lasts from june 1 through november 30.
the amount of atmospheric co2 has steadily increased during the last century.
a windstorm blew down trees in the boundary waters canoe area in minnesota on july 4, 1999.
deserts are generally dry ecosystems having very little rainfall.

The correct answer is C. A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999.

Explanation:

A weather event refers to a specific phenomenon in weather that in most cases is not common but particular and specific, which is different to weather patterns, this includes specific hurricanes, abnormal rain patterns, etc. Considering this, the one that is an example of a weather event is "A windstorm blew down trees in the Boundary Waters Canoe Area in Minnesota on July 4, 1999" because this is a specific phenomenon rather than a pattern in weather as int the case of hurricane seasons or permanent weather conditions.

explanation: grsaa

the answer would be 3