Which statement best explains why radon and krypton do not bond easily with other elements

They have eight electrons in their valence shells, so they are stable without gaining or losing electrons.

Explanation:

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lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

because the light is a great source of energy for the plants to survive. (i hope this )