1. Sunlight:
* The poles: Sunlight hits the poles at a very oblique angle, meaning it's spread out over a larger area. This is why the poles are colder than the equator. However, they don't always have thinly spread rays - they experience periods of 24-hour daylight and 24-hour darkness depending on the season.
2. Electromagnetic Radiation:
* The upper atmosphere: The Earth's atmosphere acts as a filter, absorbing and scattering different types of radiation. The highest layers of the atmosphere, like the exosphere, have very thin air and therefore receive less radiation compared to the lower atmosphere.
3. Any type of energy or "rays":
* Deep underground: Deep underground, the Earth's crust blocks most forms of radiation, including sunlight.
To get a more precise answer, please clarify what kind of "rays" you are asking about!