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Hot air is less dense than the surrounding air and therefore it rises. Cold air, on the other hand, is the opposite. It is more dense than surrounding air and sinks.
Air pressure
Gases are less dense than solids.
No, oil is less dense than saliva.
An object will float when it has less density than the fluid or substance that it is placed in. The object floats upward due to buoyant forces. Similarly, objects will sink if they are dense than the fluid.
There are a number of things that may happen to substances that are less dense than the surrounding material. In most cases, this is what will cause them to float on the surrounding material.
0they float because they are less dense than the air surrounding it
Then the air is called "stable" because a parcel of air from the surface lifted upward will drop in temperature at the dry adiabatic lapse rate. If the environmental lapse rate is less, then the lifted air will be cooler and more dense than the surrounding air, and thus stop moving upward through the atmosphere.
the answer is less
in atmosphere when an air PARCEL rises then it's temperature is comapred with temperature of the surrounding air.if the temperature of air parcel is less than surrounding air then that means air parcel is denser than surrounding. In this situtaion it's tendancy in such situation is to return to it's original position. (STABLE CONDITION OF ATMOSPHER)but if parcel's temperature is higher than surrounding air then that means it is lighter that surrounding air. In this situation it's tendacy is to rise up and up. (INSTABLE CONDITION OF ATMOSPHERE).This will continue until parcel finds same temperature as that of the surrounding (Temperature of surrounding and air parcel is the same).It becomes stable at that positionHuman being are like that air parcel.Humans will continue it's journey for promotion until he finds a position satisfying his conditons...........
in atmosphere when an air PARCEL rises then it's temperature is comapred with temperature of the surrounding air.if the temperature of air parcel is less than surrounding air then that means air parcel is denser than surrounding. In this situtaion it's tendancy in such situation is to return to it's original position. (STABLE CONDITION OF ATMOSPHER)but if parcel's temperature is higher than surrounding air then that means it is lighter that surrounding air. In this situation it's tendacy is to rise up and up. (INSTABLE CONDITION OF ATMOSPHERE).This will continue until parcel finds same temperature as that of the surrounding (Temperature of surrounding and air parcel is the same).It becomes stable at that positionHuman being are like that air parcel.Humans will continue it's journey for promotion until he finds a position satisfying his conditons...........
El Nino waters are less dense because the waters are warmer and warm water is less dense than cool water. Also, it constantly rains over the ocean during the El Nino, and rain water is less dense than ocean water.
The hot air is less dense than the air surrounding the balloon, so it floats in the surrounding air.
Magma is less dense than the surrounding rock; as such, it will rise toward the surface.
Hot air is less dense than the surrounding air and therefore it rises. Cold air, on the other hand, is the opposite. It is more dense than surrounding air and sinks.
The gas inside the bubble is less dense than the surrounding water
It is less dense than its surrounding rock matter