Which one of the following choices most accurately describes the difference between anaerobic and aerobic reactions?
a. anaerobic reactions require oxygen and aerobic do not.
b. aerobic reactions require oxygen and anaerobic do not.
c. aerobic reactions break down glucose and anaerobic reactions break down protein.
d. aerobic and anaerobic reactions produce energy at the same rate.

Grade 91.)the gravitational pull from the moon words).2.) what is the rate of gravitational 3.)if you drop a hammer, is it more likely to drop handle side down, head side down, or equal chance that it will land either way? why? 4.)a car moves 60km east and 90km west.a.) what is the distance the car traveled? b.) what is the car's displacement5.)what is the average velocity of a car that moved 60 km south in 3 hours? 6.) a car starts from rest and acceleration to 60 m/s over a time of 5 seconds. what is the acceleration of the car? 7.)what is the speed of an object at rest?