Tunguska-Type Events Are Thought to Occur About Once Every

question 25

Multiple Choice

Tunguska-type events are thought to occur about once every

• A) 100 years.
• B) 1000 years.
• C) 100 000 years.
• D) 1 million years.
• E) 100 million years.

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Definitions:

Cyclothymic Disorder

A mood disorder characterized by periods of hypomanic symptoms as well as periods of depressive symptoms that are not severe enough to qualify as major depressive episodes.

Hypomanic Symptoms

Characteristics of hypomania, including elevated mood, increased activity or energy levels, and often excessive risk-taking, without the severity of full mania.

Mild Depressive Symptoms

Less severe forms of depressive symptoms that may include sadness, irritability, or fatigue, but do not fully meet the criteria for major depression.

Rapid Cycling

a term in bipolar disorder indicating four or more mood episodes within a year.