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
Incubator The incubators are essential to provide an ideal micro environment. The main functions are: isolation, maintenance of thermo neutral ambient temperature, desired h

what we the strengths and weaknesses of pangenesis theory

SIGNIFICANC E OF GASTRULATION - It results in the formation of three germ layers. It also resutls in the formation of different organs & organ systems. Gastrulation is e

Mitral Valve replacement with Allograft (Mitral homograft) :  C. Acar and colleagues used mitral allograft for mitral valvc replacement using a new technique of fixation of p

Explain the Photosensitive Detectors? A wide range of detectors varying in senstivity and cost are available. They contain a light sensitive surface that releases electrons in

GRAFFIAN FOLLICLE - It appears as knob or stigma in medulla. It is round, discovered by Graff. It is covered by 2 layers - thecae externa & theca interna. From theca i

What is the most probable inheritance pattern of a trait with gaussian proportional distribution of phenotypical forms? If a trait statistically has a normal (bell-shaped curve

what exactly is oxidation and reduction potential and how its an imp. factor in spoiling meat

Structural Function - Essential Elements The elements nitrogen, phosphorus and sulphur absorbed from the soil are essential components of amino acids and nucleotides. The othe

The vitamin niacin is a necessary component of NAD. Niacin can be consumed in food or manufactured in the body from tryptophan, an amino acid. How would a person's ability to break