Thus, the atmosphere blocks about 77% of the Sun's UV, almost entirely in the shorter UV wavelengths, when the Sun is highest in the sky (zenith). Of the ultraviolet radiation that reaches the Earth's surface, more than 95% is the longer wavelengths of UVA, with the small remainder UVB. There is essentially no UVC.
Can Vegetarians Eat Butter? Those who follow a strict vegetarian diet are in fact allowed to eat butter as it is not a type of meat in any sense. People who are vegans however are not allowed to eat butter because of the fact that it is an animal byproduct. Many people confuse vegans and vegetarians because they seem similar, though there are some very distinct differences which are important to take note of.
Vegetarians eat a diet of grains, pulses, nuts, seeds, fruit and vegetables, dairy products and eggs. Vegetarians who also don't eat eggs and dairy products are called vegans. There are three main types of vegetarian: 1  Lacto-ovo-vegetarians eat both dairy products and eggs.2  This is the most common type of vegetarian diet. 3  Lacto-vegetarians eat dairy products but not eggs.egetarians who also don't eat eggs and dairy products are called vegans. There are three main types of vegetarian: 1  Lacto-ovo-vegetarians eat both dairy products and eggs. 2  This is the most common type of vegetarian diet.