A is an example of physical change
Fermentation is an aerobic process which means it uses oxygen. anaerobic is a process with out oxegyn
Answer:
option B
Explanation:
An Object that has linear Kinetic energy so, it must be moving.
Expression of Kinetic energy
From the expression above we can clearly see that Kinetic energy is directly proportional to velocity of the object.
If the body has kinetic energy so, it must be moving with certain velocity.
Hence, the correct answer is option B
Answer: The Doppler effect is when the frequency of a sound or light wave is increased or decreased as the observer moves away or toward the source. This is why the pitch of sirens seems to change when they get closer and when they get further.