We wanted to know in which camp to place expeller pressed oil. What you need to know: The three most popular methods of oil extraction from vegetables, nuts and seeds are : * Chemical solvents * Centrifuge * Screw press (expeller) Often, more than one method is used, this in order to squeeze the most oil out.
Best Answer: Good question. On average clouds reflect 60% of incoming solar radiation which includes short wave UV. The thicker the cloud the greater the reflection, from 60 - 90%. For thin clouds the albedo, or relection is 30 - 50%, which explains why we can still receive UV on cloudy days. Source(s): I am a retired Air Force meteorlogist with a Ph.D. in atmospheric science and over 50 years of professional experience.
Visible light, ultraviolet rays, and X-rays are all parts of the  electromagnetic spectrum, and travel at the same speed. Humans can  see visible light, but not ultraviolet â¦ rays or X-rays. Ultraviolet  rays have shorter wavelengths, higher frequencies, and higher  energy than visible light. X-rays have shorter wavelengths, higher  frequencies, and higher energy than ultraviolet rays.   This means that ultra violet and x-rays can do far more damage to  our flesh than light can.