Answer:
it's answer is lithium and boron.
Oil or petroleum are nonrenewable resources, the others are renewable resources.
Answer:
yeah,The oxidation state of an atom does not represent the "real" charge on that atom, or any other actual atomic property.Hydrogen has OS = +1, but adopts −1 when bonded as a hydride to metals or metalloids. Oxygen in compounds has OS = −2. This set of postulates covers .
Explanation:
they pair up with other bases to make up the rungs of the DNA ladder
