Bacteria that require for respiration are called . *
1 point
a. Food--- obligate anaerobes
b. Food--- obligate aerobes
c. Oxygen--- obligate anaerobes
d. Oxygen--- obligate aerobes

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

Could someone me with number one you

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences