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.
Also, certain light rays can be used to see what objects in space are made of. Earth has a thick atmosphere, making it difficult to see details in objects being looked at in a telescope. While you could send lots of telescopes into space, the process takes time and money. Light rays like Infra Red can be used to cut through the atmosphere and allow you to see stars and planets on Earth's surface. Also, certain light rays can be used to see what objects in space are made of. Earth has a thick atmosphere, making it difficult to see details in objects being looked at in a telescope.