Hello, this question is incomplete. The complete question would be:
" Clouds can begin to form at which point
A.) vapor point , B.) humidity point , C.) subduction point , D.) gradient point, E.) dew point"
Answer:
E.) dew point
Explanation:
Obviously, clouds arise due to the evaporation of water from the soil, the seas and even us. But it is not so simple and several factors are necessary for them to form and walk through the skies until they fall in the form of rain.
When water vapor begins to rise, atmospheric pressure decreases, which dissipates energy, cooling the water and allowing the steam to expand. Until at some point the water reaches the "dew point", that threshold where the air becomes so saturated, that the water begins the condensation process, where it ceases to be just steam to form droplets.
However, water condenses better when it comes into contact with solid things. This is when the “cloud seeds” come into play. These seeds are small particles, such as salt and dust, that have risen along with the water up there. This union is what actually generates the clouds, because when the water condenses in large quantities, the clouds become visible from below. That is, the clouds visible to us are not steam, as it seems, but water already in liquid form.
