The answer is going to be Jogging. I took the test. dont go for carrying small objects that is the wrong answer.
<span>Pavlov became interested in studying reflexes when he saw that the dogs drooled without the proper stimulus. Although no food was in sight, their saliva still dribbled. It turned out that the dogs were reacting to lab coats.</span>May 15, 2001
Answer:
stop all the factory or ruduce the number of them
