Hills are easier to climb than mountains. They are less steep and not as high. But, like a mountain, a hill will usually have an obvious summit, which is its highest point. According to the U.S. Geological Survey, there is no official difference between hills and mountains.
The energy transfer of one organism to the next? when a organism is eaten a certain percent of their meals energy is gain for example a snake eats a mouse only a small percent of that mouse's energy is past to the snake i hope this helps
Explanation:
Wars might be caused because different cultures might think they are superior to others which could cause war.