See also: Dealing with Breathing Problems written for patients. The term hyperventilation describes excessive ventilation of the lungs, beyond what is required to achieve normal arterial blood gases.
A light frost occurs when the temperature drops to below 32 degrees Fahrenheit, and refers to the conditions that allow a layer of ice crystals to form when water vapor condenses and freezes without first becoming dew. Harvest basil and other tender herbs before a light frost (when the temperature drops to 32 degrees Fahrenheit). 2  Even if they survive the frost, they don't do well in cold temperatures. 3  The same is true for most annuals.
Report Abuse. In order for frost to form, the surface upon which the frost is forming must be below 0 C/32 F and the temperature must be below the dew point of the air around it. Note that this could happen even if the air temperature is very high as long as the surface that the frost is going to form on is cold! Louis Â· 7 years ago.