you need the hyphen only if the two words are functioning together as an adjective before the the noun they're describing.
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Answer:</h2>
The traits of extraversion (also spelled extroversion) and introversion are a central dimension in some human personality theories. The terms introversion and extraversion were introduced into psychology by Carl Jung,[1] although both the popular understanding and current psychological usage vary. Extraversion tends to be manifested in outgoing, talkative, energetic behavior, whereas introversion is manifested in more reflective and reserved behavior.
<h3>hope it helps (^^)</h3>
<h3># Cary on learning</h3>
Answer: with time.
Explanation: Just a guess; there really isn't enough information pertaining to how to answer the question :)
Answer:
Some bears hibernate in hollowed-out tree trunks. Some take a months-long rest beneath thick brambles and brush. Others dig into the hills to forge snug dens. And still others discover caves to hide away from the biting winter chill. But wherever a bear chooses to hibernate, the objective is the same. It's a keen adaptation to avoid the long, ruthless winter famine. Hibernating animals — including ground squirrels, groundhogs, and bats — slow their breaths, reduce their heartbeats, and substantially wind down, or depress, their metabolisms. Such dramatic changes can be taxing on their bodies, but the alternative, amid a starving winter, is almost certain death. So, come fall, the animals go into a controlled, coma-like state.
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