Final answer:
Photorealism is an artistic period where subjects are painted realistically, with details of nature and responsive to light.
Step-by-step explanation:
The artistic period that involved artists painting in a realistic manner, showing detailed nature and responding to light, is known as Photorealism. This movement began in the United States and its artists embraced the realism of photographs, using them as the basis for their highly realistic work. They focused on capturing the interplay of light and color, particularly in reflections on surfaces such as steel, glass, and chrome. Photorealists also made use of deliberate planning, exact workmanship, and smooth surfaces to retain a photo-like image in their paintings.