Who is the richest man in the world​

Magnesium is the fourth most abundant mineral in the body and is essential to good health. magnesium is needed for more than 300 biochemical reactions in the body. it maintain normal muscle and nerve function, keep bones strong, keep one’s heart rhythm steady, and supports a healthy immune system. magnesium also regulate blood sugar levels, promotes normal blood pressure, and may play a role in energy metabolism and protein synthesis. doctors and scientists are trying to determine whether magnesium may play a role in preventing and managing disorders such as hypertension, cardiovascular disease, and diabetes. which is the main idea of this paragraph? a. the role of magnesium in human nutrition is being studied intensely. b. magnesium may be related to the body’s metabolism and other healthy functions. c. magnesium appears to contribute to hypertension, cardiovascular disease, and diabetes. d. magnesium and a healthy immune system are separate diseases.

Which of the following best describes the central idea of the article? a the tuskegee airmen started the civil rights movement by proving that black pilots are more skilled than white pilots. b the tuskegee airmen proved that black and white pilots had the same potential, which break racial barriers. c despite breaking racial barriers, the tuskegee airmen faced racial discrimination and were never recognized for their military success. d black pilots in the military had to work twice as hard as white pilots, and due to a lack of funds they were underprepared.

The correct word to complete the sentence