One of the earliest human civilizations in history settled along the indus river.

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

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

Asap! ! ! ! true or false the gobi desert, the largest desert in asia. covers parts of northern china and southern russia