The simple view of the bonding in methane You will be familiar with drawing methane using dots and crosses diagrams, but it is worth looking at its structure a bit more closely. There is a serious mis-match between this structure and the modern electronic structure of carbon, 1s 2 2s 2 2p x 1 2p y 1.
Lack of sun exposure: Lack of sun exposure is a major cause of low vitamin d level especially if you live in the northern us. Less likely would be lack of vitamin d in food, but also a possibility if you are on a very restrictive diet.
Vitamin D is a fat-soluble vitamin, which means that vitamin D is absorbed by fat globules and extra amounts are stored in your bodyâs tissues. Because of this, if you do not have enough fats -- such as triglycerides -- in your body, fat-soluble vitamin levels, including vitamin D, may be low.Low fat levels can result from a diet too low in fat, or if you take medication to control the amount of fat your body absorbs.ecause of this, if you do not have enough fats -- such as triglycerides -- in your body, fat-soluble vitamin levels, including vitamin D, may be low. Low fat levels can result from a diet too low in fat, or if you take medication to control the amount of fat your body absorbs.