Which astronomical event marks the day with nearly equal hours of day and night worldwide?

Which planet in the solar system is known as the Red Planet due to its iron oxide rich surface?

Which flexible connective tissue cushions joints and is found in structures like the ear and nose?

Which essential mineral is critical for maintaining strong bones and teeth in the human body?

Which B vitamin deficiency commonly causes the disease beriberi affecting the nervous and cardiovascular systems?

Which structure connects the throat to the lungs and branches into smaller airways within the chest?