Fog Flashcards
1
Q
How does fog form?
A
Air must contain moisture and there must be dust or aerosol particles, known as CONDENSATION NUCLEI, in the air around which the moisture can coalesce to form droplets.
(Coalesce - come together to form one mass or whole.).
2
Q
How does fog form?
A
Moisture + condensation nuclei
Aerosol or dust
3
Q
Fog or mist consists of what?
A
Visible water droplets or ice crystals suspended in the air.
4
Q
What is the definition of FOG?
A
Where the conditions reduce visibility to less than 1km.
5
Q
What is the definition of MIST?
A
Where the same conditions result in lesser impairment of visibility.
