PLEASE ANSWER THESE 4 QUESTIONS 1.due to passing of excess of CO2 through slaked lime is formed which is used as antacid.

2.the speed of electromagnetic waves is ___(in Km/S)

3. The distance of image formed is always infinity for a concave mirror when an object is

4. power of the lens is -5D, then the focal length of the lens is

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

You want to lose weight and have been trying to decide which type of fad diet is best for you. you ask your doctor, who responds that a. fad diets are a temporary fix but generally don't have any side effects b. fad diets can be used several times a year to maintain a healthy weight c. fad diets can be risky for your health and, in the long run, do not work d. fad diets should never be used one right after the other; there should be a break between them select the best answer from the choices provided. a b c d