Question

19.Fog appearing appearing in 2
a cold winter morning and
blackboard dries up after
wipping
*​

Answer 1

Answer:

• Fog appears on cold winter morning due to the condensation of the atmospheric water vapour near the surface of the earth.

• Blackboard dries quickly after wiping it as it is black in colour and not so shiny helps it to absorb heat from the light falls on it to get warmer that accelerates the evaporation