5. Ultraviolet rays are potentially harmful to us primarily due to their A. intensity
B. high frequency.
C. long wavelength.
D. amplitude.

A

Explanation:

Ultraviolet light occurs after white light;

Do you know why gamma rays are harmful because of their high frequency and short wavelength leading to high intensity.

Though the frequency is higher than that of white light, its because of its intensity.

Ultraviolet rays comes handy from depletion of the earth's ozone layer

Hence harmful Ultraviolet rays from the sun attacks the skin Leading to Sun burn and other things.

im sorry i dont know

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force