(a) X-rays are absorbed by the atmosphere, although visible and radio waves can get through.
(b) The ozone layer absorbs ultraviolet energy from the sun, preventing it from reaching the earth’s surface and harming life.
Answer the following questions:
(a) Optical and radio telescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth. Why?
(b) The small ozone layer on top of the stratosphere is crucial for human survival. Why?
(a) Optical and radio telescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth. Why?
(b) The small ozone layer on top of the stratosphere is crucial for human survival. Why?
Answer the following questions:
(a) Optical and radio telescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth. Why?
(b) The small ozone layer on top of the stratosphere is crucial for human survival. Why?
(a) Optical and radio telescopes are built on the ground but X-ray astronomy is possible only from satellites orbiting the earth. Why?
(b) The small ozone layer on top of the stratosphere is crucial for human survival. Why?