<span>Chemical bonds hold combinations of atoms together in molecules. These chemical bonds, called covalent bonds or molecular bonds, are formed when two atoms share electron pairs. Some other types of chemical bonds are ionic bonds and metallic bonds.</span>
Because the space is ultimate thermos.
The answer is obviously d
Dududuchcucu I h y y y y y red t e. Drrr. Erred tfyryt ty
B and d will work out and a and c will also work out