What is the function of red bone marrow in the human body?

What is the chemical symbol for iron?

Which star, known as the North Star, is often used in navigation due to its proximity to the celestial north pole?

Which planet is often referred to as the "Evening Star" or the "Morning Star" and is the brightest natural object in the night sky after the Moon?

What is the closest star to Earth?

Which moon of Jupiter is the most volcanically active body in our solar system, with plumes of water vapor and icy particles erupting from its surface?

What is the term for the zone of the ocean where light cannot penetrate, and temperatures are low and pressure is high?

Which type of rock is formed from the alteration of existing rock through heat, pressure, or mineral changes without melting?

What is the term for the region around a planet where its magnetic field influences charged particles, often creating auroras?

What is the term for the process by which rocks are physically broken into smaller pieces without changing their composition?