This disease is the leading cause of blindness worldwide especially in arid areas of the world. the disease can be easily transmitted by contact and sharing of personal items. the infection inflames and thickens the eyelid, causing it to turn inward. the scars and eyelashes abrade the cornea leading to blindness if left untreated. what organism is the causative agent of this disease?

The organism that causes this desease is the chlamydia trachomatis.

Explanation:

Trachoma is an infectious disease that affects the eyelids and the cornea. If it is left untreated can lead to blindness. The organism that causes this disease is a bacteria called chlamydia trachomatis. The bacteria can be transmitted by being in contact with the eyes or nose of an infected person or being in contact with objects that have touched the eyes or nose of the infected one.

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.