A substance that releases hydoxyl and a water is.​

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 are two examples of conduction that we use everyday

Several billion years ago which gas was the least prevailant in the atmosphere