Intra-uterine device(IUD) to prevent the fertilised egg from implanting itself in the uterine wall.
Answer is bottom front teeth
Reason
Firstly, this area is a difficult spot to clean, especially if the head of your toothbrush is bulky. It is very easy to skim over, leaving plaque behind. Also, there are saliva ducts present on the floor of the mouth, adjacent to these teeth, so saliva is continually bathing this area.
Circulation of the air, letting outside air in and air filters.
The mastery hypothesis: the mere fact that they are exercising makes patients feel like they have achieved something, cheering them up much as learning a new hobby or achieving a certain goal might cheer them up.
That sounds like B to me.
Answer:
(Answers may vary.)
This theory provides a correlation by combining two aspects. Because the rainy weather leads to relatively cooler temperatures, people might prefer to drink hot soup. On the other hand, because people tend to get wet in the rain, they are also more susceptible to the flu. Therefore, there is a positive correlation between the consumption of hot soup and the instances of flu.
However, this theory does not provide causation. Causation refers to a cause–and-effect relationship between the two variables of a theory. In the given example, it is not possible to conclude that hot soup causes the flu just because the two aspects have a common factor—the rain. Therefore, the theory does not present an accurate causal factor.
Explanation:
Edmentum