4 basic types of what? Please retype your question
Answer:
c. We can never observe a necessary connection between events.
Explanation:
According to Hume, he argues that we can never conceive any necessary connection between the events of cause and effect. This is as a result that there is no other impression to which our idea may likely be traced.
So, according to Hume, he believes that when we have an experience of one event that it likey leads to assume an "unobserved" cause.
Answer:
Causes of World War II :
1 The Failure of Peace Efforts.
2 The Rise of Fascism.
3 Formation of the Axis Coalition.
4 German Aggression in Europe.
5 The Worldwide Great Depression.
6 Mukden Incident and the Invasion of Manchuria (1931).
7 Japan invades China (1937).
8 Pearl Harbor and Simultaneous Invasions (early December 1941)
Answer: <em>Serotonin and Dopamine</em>
Dopamine is a neurotransmitter which is usually associated with attention and learning, and too of it little can be related to several forms of depression.
Also, Serotonin plays a part in the development of mood, appetite and is associated with sleep, whereas; too little of serotonin is related to depression.