3 its number 3 because half of our life time we still are looking for that answer but i still not sure it hope it helps
Endothermic - takes in heat
Exothermic - releases heat
Answer:
Spain was a major factor in exploring Central and south america
One of a group of disorders involving severe and enduring disturbances in emotionality ranging from elation to severe depression. mood disorders
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What is mood disorders?</h3>
Any of a variety of mental and behavioral disorders where a person's mood is the primary underlying trait is referred to as a mood disorder, often known as an affective disease. The International Classification of Diseases (ICD) and Diagnostic and Statistical Manual of Mental Disorders (DSM) contain the classification (ICD).
There are seven different types of mood disorders, including those that cause abnormally high moods like mania or hypomania, depressed moods like major depressive disorder (MDD), also called clinical depression, unipolar depression, or major depression, and moods that alternate between mania and depression, known as bipolar disorder (BD) (formerly known as manic depression).
To learn more about mood disorders from the given link:
brainly.com/question/1629790
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