Early photography required a long exposure time and the developing process was laborious. Handling of silver powder was also risky. However, early photography was such an important feat. Portraits were famous subjects of photography. Pictures of landscapes and everyday life were also common.
I am very confused about what you are asking
Answer:
Orange, Green, and Purple
Explanation:
Secondary colors are formed when 2 primary colors (red, yellow, and blue) are mixed together. Orange results from yellow and red, green from blue and yellow, and purple from red and blue.
Answer:
insulin
Explanation:
The insulin that has the longest duration of action, which is the length of time it works, is usually either the intermediate-acting insulins such as NPH insulin (human), or the long-acting insulins such as insulin glargine (Lantus) or insulin detemir (Levemir). Their duration of action can be up to 24 hours long.