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.
Butter is a solid dairy product made by churning fresh or fermented cream or milk, to separate the butterfat from the buttermilk. It is generally used as a spread on plain or toasted bread products and a condiment on cooked vegetables, as well as in cooking, such as baking, sauce making, and pan frying.ommercial butter is about 80% butterfat and 15% water; traditionally made butter may have as little as 65% fat and 30% water. Butterfat is a mixture of triglyceride, a tri ester derived from glycerol and three of any of several fatty acid groups.