Answer:
a normal is a line drawn perpendicular to the point of incidence and reflected ray .
<h2>Answer 1 with Explanation </h2>
Epidemiology is the biological study in which the study provides information about the occurrence of disease and its control in any group of people. There are two type of epidemiology that is cohort studies, case-control, and cross-sectional studies. These studies are carried out among different societies to inform people about the occurrence of any disease and how it could be controlled.
<h2>Answer 2 with Explanation</h2>
Health Expenditure is basically measuring the health care good consumed by the people in any society. The health care services include long term care, physical care, and other medical goods come under this. The health expenditure also looks after the family planning programmes , nutritional activities, and other stuff related to the person living in any community.
Answer:
Nearsightedness (myopia) is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry. It occurs when the shape of your eye causes light rays to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.
Nearsightedness may develop gradually or rapidly, often worsening during childhood and adolescence. Nearsightedness tends to run in families.
A basic eye exam can confirm nearsightedness. You can compensate for the blur with eyeglasses, contact lenses or refractive surgery.
Explanation:
Nearsightedness (myopia) is a common vision condition in which you can see objects near to you clearly, but objects farther away are blurry. It occurs when the shape of your eye causes light rays to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.
Nearsightedness may develop gradually or rapidly, often worsening during childhood and adolescence. Nearsightedness tends to run in families.
A basic eye exam can confirm nearsightedness. You can compensate for the blur with eyeglasses, contact lenses or refractive surgery.
The answer would be B.often times depending on the exercise you would need a spotter
