Which element is the most abundant in the human body and essential for respiration?
Oxygen (O)
Which element is important for bone health and is a component of vitamin D activation?
Calcium (Ca)
Which element, found in hemoglobin, is vital for preventing anemia?
Iron (Fe)
Which element strengthens teeth and helps prevent dental cavities?
Fluorine (F)
Which trace element is necessary for the proper functioning of enzymes and supports the immune system?
Zinc (Zn)
Which element, found in table salt, helps regulate water balance in the body?
Sodium (Na)
What element is required for the transport of oxygen in the blood via hemoglobin?
Iron (Fe)
Which element is a key component of the stomach acid (HCl) needed for digestion?
Chlorine (Cl)
Which element is present in some enzymes that help break down food in the digestive system?
Zinc (Zn)
Which element is important for the production of melanin, the pigment in skin and hair?
Copper (Cu)
Which element is essential for connective tissue formation and wound healing?
Copper (Cu)
