They remained focus on farming and trading
Answer:it us used to make batteries in computers and cellphones.
Explanation:
It began around the 15th century and ended around the 17th century.<span />
<span>Phobias are common mental disorder (yes, they are). It is having a persistent fear of an object or a situation. The area of the brain responsible for fear is the amygdala, and problems in this area is linked to phobias. The condition should be treated as the patient is at higher risk of suicide. There are several effective treatments for phobias.</span>
