Hemoglobin is a special protein in the blood that captures and carries oxygen.
Atoms come together to form molecules because of their electrons. Electrons can join (or bond) atoms together in two main ways. When two atoms share electrons between them, they are locked together (bonded) by that sharing. These are called covalent bonds
I think it’s
A) Calcium Sulfide
Wind forms when the sun heats up one part of the atmosphere differently that another part.
