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
Explain Non-Glycerides in Edible Oils? You may be aware of the fact that the glyceride fraction (an ester of glycerol and fatty acids that occurs naturally as fats and fatty oi

general character of class sarcodina

Action of Hormones We said earlier that hormones are released into the blood stream or extracellular fluid and therefore, reach most of the cells of the body. However, they

NUCLEOPLAS M OR KARYOPLASM OR KARYOLYMPH OR NUCLEAR SAP Nucleoplasm and cytoplasm name proposed by E. Strassburger . Chemical composition of nucleoplasm given by Kossel . Co

Explain about the Ascomycota - Fungi? Ascomycota - Ascomycetes or sac-like fungi have septate mycelium. These are called so because sexual reproduction involves the formation o

Illustrate the name of surgical needle The surgical needle is comprised of 3 parts: the needle point, the needle body, and the swaged (press-fit) end. Needle may be broadl

Explain about Thermal Destruction of Enzymes during Sterilization? Before we move on to canning, we need to emphasize here that like thermal destruction of microorganisms, ther

Q. What are nerves? Axons extend all through the body inside nerves. Nerves are axon-containing structures presenting many axons and covered by connective tissue. The nerves co

TYPE S OF LYSOSOMES (1 )      Primary Lysosomes or storage granules or protolysosome - The primary lysosomes are smaller in size, they contain hydrolytic enzyme in the form

phylogenetic consideration