return air systems

Systemic is the most widespread circulatory pathway. It accounts for supply of oxygenated blood to all the parts of the body and collection of deoxygenated blood from the tissues. The left ventricle of the heart opens into a major artery called the aorta. The aorta branches just abov..

can be Pollution due to all types of terrestrial transport system due to urban transport system due to other modes of transpor..

Jason is a member of a flying club. With a tail wind, his plane traveled 2240 mi in 5h. With a head wind, it took 7h to make the return flight over the same route. Find the plane's air speed and the wind speed, assuming both were constant. => 364, 84 or 320, 59 or 404, 64 or 384..

Lymph - At the capillary end of the arteries, the walls are only one-cell thick. The pressure in the arterial capillaries is also quite high. These leads the plasma to leak into the interstitial space. The interstitial space is the space between the cells of the tissue. The fluid is plasma minus th..

Pharynx - It is the portion of the alimentary canal after the mouth. It is a cavity common to air and foo..

Animals encounter many potentially dangerous microbes in air, water and food. So they have involved defense mechanisms against the disease causing germs Immunity is a defense mechanism without which we will fall a prey to all parasitic microorganis..

Cities and other urban agglomerations generate such a large quantity of wastes that, their safe disposal is a great challenge. Although many technologies have been developed to ensure their safe disposal, in capital deficit countries like India adopting such technologies is either partial or neglig..

Cylic reaction transport occurs only occasionally when synthesis of carbohydrate is curtailed due to limited supply of CO 2 and NADPH 2 starts accumulating. At this time, there would be no need for additional NADPH 2 . Moreover, the cyclic electron transport serves the purpose of more production of..

Producer gas is passed into the regenerator G 1 which has been heated previously. Air is passed through another regenerator G 2 which is also heated. Producer gas burns in air over the hearth of the furnace producing large amount of heat, which is used to melt the charge. The..

Respiratory system - Lungs are the respiratory organs. The passage way for air is formed by external nostrils, pharynx, larynx, trachea and bronchi. Lungs contain large number of minute alveoli in which external respiration takes place. Surrounding the lungs and the heart is a t..