Inversion, Biology

Inversion

We know that atmosphere is heated from below and warm air rises, but air can be prevented from rising by a condition known as inversion. An inversion refers to a situation characterised by warm air floating over cool air. One of the causes of inversion is the flow of winds across vast expanse of cold oceans. Here the moving air is cooled from the bottom instead of being heated. These winds are comparatively dry even though they cross oceans. Because of the low temperature of the surface winds the land under such an inversion can become desert. The Galapago's Islands which Darwin visited are desert because they lie under an inversion zone, even though they are at the equator. as they happen to be in the path of stable inverted air moving towards the intertropical convergence. Local inversions assume importance since pollution levels increase during such conditions. Because of low wind velocities, the air above the inversion is not able to mix with the low level air, makingit stagnant. This is common during low temperature conditions; dew, frost or fog often forms. The ground thus remains cool and the trapped pollutants are unable to escape.

Posted Date: 12/10/2012 7:13:32 AM | Location : United States







Related Discussions:- Inversion, Assignment Help, Ask Question on Inversion, Get Answer, Expert's Help, Inversion Discussions

Write discussion on Inversion
Your posts are moderated
Related Questions
What is the importance of vitamin A The importance of vitamin A is undisputable. You may already be aware about the functions/role of vitamin A in our body.  Vitamin A is absol

which bone forms the non-moving muscle attachment in the hip joint

HACCP - What is Validation Validation   :  That element of verification focused on collecting and evaluating scientific and technical information to determine  if  the HACCP

Illustrate the thin and think filaments in the muscle fiber A healthy skeletal muscle fiber is isolated and has no external forces on it.  It has normal intracellular levels of

Q. What is an instance of a hypothesis which may explicate why there is not a big representation of the class Reptilia found in Polar Regions? Beings of the class Reptilia are

Q. Physical Signs of mitral regurgitation? Pulse is of normal character but carotid upstroke may be brisk. Atrial fibrillation is often present in a patient with advanced disea

Define Mechanism for Copper Absorption? As in the case of other minerals, copper absorption appears to occur by two mechanisms: i) Saturable active mechanism, which operates

Needlestick/sharp instrument injuries are of major concern to health care workers. All of the significant exposures reported in the academic year 2003/04 in our Faculty, were injur

Chloroplasts is the disk-like organelles with the double membrane found in eukaryotic plant cells; contain thylakoids and are the site of the photosynthesis. ATP is produced durin

Q. Define Left Posterior Hemiblock? Bobbna and associated reported four cases in which they proposed that the left posterior hemi block was initiated by exercise. In their pa