21. Which of the following can help increase energy efficiency in the transportation industry?
a. Cogeneration
b. smart meters
c. LEED certification
d. hydrogen fuel cells
e. molten salt systems

Which type of neuroglia is found outside of the brain?

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

What is the process of pulling apart an n2 molecule nevermind i got it