Answer:
the chemicals had to be applied to the plate in the dark.
the photograph had to be made and developed while the chemicals were still wet
Anatolian Plateau
<span>This generally barren and arid plateau of central Turkey averages about 500 meters in elevation. Farming and livestock raising (the major industries), are difficult occupations here as extreme temperatures, both summer and winter are commonplace.</span>
They also engaged in the ceramics Industry, paper making, porcelain making, tea-leaf processing, metallurgical among other activities which helped boost their economy. The people in Tang Dynasty were involved in commercial activities due to developed and improved agriculture and the handicraft industry. Inventions during the Tang dynasty were made in the fields of medicine, engineering, and sciences. Gun powder, gas cylinders and porcelain were among the few inventions during this time. Printing was another big accomplishment during this dynasty. The Song Dynasty (960–1279) of China was a period of Chinese history marked by commercial expansion, economic prosperity, and revolutionary new economic concepts. Private trade grew and a market economy began to link the coastal provinces with the interior. Hope this helps!
