Which of the following factors contribute to a low death rate? i. increases in food supply ii. advances in medical care iii. changes in climate iv. improvements in the standard of living. (3 points) i and ii i, ii, and iii i, ii, and iv all of the above

You could say the relative location of washington, d.c.

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

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau