Many organizations release indexes used to measure the development of the world's countries. As we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. In your opinion, what are three most important factors we can use to determine how developed a country might be? Explain your answers in a few sentences.

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle

In order from largest to smallest what are earths five main oceans