Gases can be produced by normal flora (bacteria that normally lives in the intestines) and harmful bacteria as well.
Answer:
Both A and B, because if you have bad posture you will have weaker bones which can make you get hurt easier plus weaker bones will not be safe especially if you got in a car wreck.
The answer is all of the above
Answer: Stage 3- Identification
It is the stage in the development of the infant (by two years old) where "self-awareness" comes into play, Infants can identify themselves in a mirror as well as begin to use language to refer to themselves. Infants also become aware of the surroundings.