*science*please don’t give me a website:( 50 points to whoever gets it right!(I’ll make a seperate post with 50) What is the clarity of signal for analog and digital signals

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

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated

Which is a kingdom? protistachordataprokarya mammalia