networks group

The biotic and abiotic components form an interacting system called 'ecosystem'. Producers, consumers and decomposers are the various trophic levels, which are linked by their food relationship forming a 'food chain'. Several food chains are interrelated and interconnected to form a network..

A characteristic property of the elements of groups 14 is that these show allotropy. Allotropy is the existence of an element in two or more forms, which are significantly different in physical properties but have similar chemical properties. The difference may be due to difference in cr..

is the extended region into which a group of alveoli or air sacs open. Each alveolus is a sac-like structure lined by a single layer of epithelial cells. It is bound on the outside by a network of capillaries. All the alveoli on one side are enclosed by the membrane called the..

Trends in Chemical Reactivity - Some important group trends are: (a) On account of high ionization enthalpies, simple M 4 + ions of the group are not known. (b) Unlike carbon the other elements of the group form compounds having coordination numbers higher than 4 like ..

The dioxides are acidic in nature and acidic character decreases as we move down the group. (iii) All the elements of this group form trioxides of the formulae MO 3 . SO 3 is a gas. It is obtained by catalytic oxidation of sulphur dioxide. In the solid state it exists as a cycli..

. I mean, what does he gain by watching Cartoon Network?" Nothing, say teachers, educationists and parents in unison. And so, TV is outlawed (Tom Cruise allows his children nothing more than 45 minutes of television a week) and the PC a totem. Though it occupies pride of place at both hom..