When atoms share electrons, it is a
bond.
ionic
metallic
covalent
formula

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

What is the name of the two satelites on mars

Classify the structures as homologous or analogous, depending on their structure and function.