The mass remains the same given that the number of air molecules remain the same and none did escape into the atmosphere.
As heat is being absorbed by the air molecules, they vibrate more vigorously and the electrostatic forces of attraction between the molecules weaken and they become further apart. Hence there is lesser number of air molecules per volume, indicating that density has decreased.
Answer:
True
Explanation:
The air behind a cold front is cold and dry. This is true because the cold front has a cooler mass of air which is usually cold and dry and it replaces at ground level a warmer mass of air.
This cycle continues and results in evaporation and precipitation and helps in balancing the atmosphere.
Differentiation is the process that transforms developing specialized cells with different structures and functions