I believe it is the number of electrons
Death of those carrying the illness and increased medical habits
Executive is defined as someone or something with administrative or managerial authority. An example of executive is the CEO of a company. A person or group having administrative or managerial authority in an organization. The chief officer of a government, state, or political division.
If this is a multiple choice, I would say someone who is in charge of the country or someone who manages affairs.
Photographic paper reacts to light to produce the image taken by a camera and stored on film. Darkrooms used red lighting to allow photographers to control light carefully, so that light-sensitive photographic paper would not become overexposed and ruin the pictures during the developing process.
