Explanation:

Neither of the statements about the consequences of the Chinook winds in America is correct:

Incorrect: Chinook winds, often called "snow eaters," actually lead to a rapid increase in temperature and decrease in humidity. They are warm, dry winds on the leeward side of mountains and can cause rapid thawing of snow rather than freezing vegetation and crops.

Incorrect: Chinook winds are not related to the onset of monsoonal winds. They do not typically cause rainfall; instead, they are characterized by their warming and drying effects as they descend from mountainous regions.

The Chinook winds are known for their ability to dramatically warm temperatures in a short period, sometimes leading to significant snowmelt and dry conditions.