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Other special features include the original theatrical trailer , radio spots , and a bio of the director . Careful examination of the negative for proper exposure , compositional elements , scratches , dust spots , fingerprints and sharp focus will make the printing process more successful and enjoyable . They learn about the creation of books , television spots , websites , presentations , and 3-D products . Publications , videos , slide sets , newsletters , articles in state and national industry magazines , newspaper articles , radio spots , and television programs are also important , visible elements of our Extension program . Publications , videos , slide sets , newsletters , articles in state and national industry magazines , newspaper articles , radio spots , and television programs are important , visible elements of our Extension program . Large pigmented spots ( called age spots , liver spots , or lentigos ) may appear in sun-exposed areas.Changes in the connective tissue reduce the skin 's strength and elasticity . And let ’ s optimistically suppose there are only one-hundred x ’ s , y ’ s , and z ’ s — all the variables that can change the climate : like the amount of cloud cover over Antarctica , the changing ocean currents in the South Pacific , Mount Helena venting , sun spots , Chinese factories burning more coal every year , evaporation of ocean water ( the biggest “ greenhouse ” gas ) , the wobbles of earth orbit around the sun , and yes , the multifarious fartings of billions of living creatures on the face of the earth , minus , of course , all the trillions of plants and algae that gobble up all the CO2 , nitrogen-containing molecules , and sulfur-smelling exhalations spewed out by all of us animals .