Lungs are organs that expand to fill with air during the process of breathing. They have the ability to expand and contract to draw in oxygen and expel carbon dioxide.
to pull in air and break out air
An Warm air mass
The warm air mass
what is a word for a place where a moving cold air mass meets a warmer air mass
No. If the volume of air changes, so will its mass.
When air inside a balloon is heated, the molecules move faster, causing the air to expand and the balloon to inflate. The total mass of the air inside the balloon remains the same, but the density of the air decreases as it becomes less compact.
When a mass of air is heated, its molecules gain energy and move faster, causing the air to expand and become less dense. This warm air will then rise, creating a convection current that can lead to the formation of clouds, precipitation, and changes in weather patterns.
No they can not. A polyp is a solid mass. It is not filled with gas and therefore will not expand in a low pressure environment.
it causes air to expand
it causes air to expand
Read about "Boyles law" http://www.grc.nasa.gov/WWW/K-12/airplane/aboyle.html As temperature increases the volume OR the pressure of a mass of air will increase. If the volume of the air mass is constrained (inside a container of fixed size) the pressure will go up. If the mass of air is allowed to expand freely it will become less dense (lighter per unit volume)
Air is less dense because the particles are mainly of lower molecular mass with similar volume, thus having an inherently lower density, and also because air is free to expand (as it is a gas) where water is liquid and so cannot expand or contract to any major degree.
Lungs are organs that expand to fill with air during the process of breathing. They have the ability to expand and contract to draw in oxygen and expel carbon dioxide.
This forms a front it can be a cold or warm front
to pull in air and break out air
No.