Question

(a) The small ozone layer on top of the stratosphere is crucial for
human survival. Why?
(b) A radio can tune in to any station in the 10 MH, to 15 MH, band,
what is the corresponding wavelength band?
(c) Write two uses of X-Rays.​

Answer 1

Explanation:

hope its helps you !!!!!

Answer 2

a).The ozone layer effectively blocks harmful ultraviolet (UV) and other forms of radiations from reaching Earth's surface, that could cause skin cancer and skin diseases to most living things.

c).The most common form of X-ray used is X-ray radiography, which can be used to help detect or diagnose:

Bone fractures.

Infections (such as pneumonia)

Calcifications (like kidney stones or vascular calcifications)