The outermost layer of the Earth is called ____________?
A. Crust
B. Mental
C. Core
D. None of these
A. Crust
B. Mental
C. Core
D. None of these
A. Riboflavin
B. Thiamine
C. Ascorbic Acid
D. Niacin
Riboflavin (also known as vitamin B2) is one of the B vitamins, which are all water soluble. Riboflavin is naturally present in some foods, added to some food products, and available as a dietary supplement.
A. Decomposition
B. Oxygen Production
C. Nitrogen Fixation
D. None of these
A. 451
B. 453
C. 455
D. 457
A. Vitamin A
B. Vitamin D
C. Vitamin C
D. None of these
A. Rickets
B. Osteoporosis
C. Anemia
D. Pellagra
Pellagra is a disease caused by a lack of the vitamin niacin (vitamin B3). Symptoms include inflamed skin, diarrhea, dementia, and sores in the mouth. Areas of the skin exposed to either sunlight or friction are typically affected first.
A. Carbohydrates
B. Proteins
C. Nucleic Acid
D. Fats