Question

Which type of UV ray is longer penetrating and causes collagen breakdown?

Select one:
UVA
UVB
UVC
UVD

Answer 1

A. UVA

Step-by-step explanation:

hope this helps you to understand

Answer 2

UVA

Step-by-step explanation:

UVB rays are shorter than UVA rays, and are the main culprit behind sunburn. The UVA rays, with their longer wavelength, are responsible for much of the damage we associate with photoaging. UVA rays penetrate deep into the dermis, where they damage the collagen fibers.