Which form of radiation is used to kill microorganisms?

X- rays, gamma rays.

Explanation:

Ionizing radiations are used to kill microorganisms. These radiations include x-rays, gamma rays and high energy electron beam. These radiations are passed into the cell. As a result, the cell component and the molecular structure gets damaged. These rays are used to kill microorganisms because they penetrate more than other rays.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2