Which is the layer underground where there are no empty spaces for water or air to fill in? O A. Zone of aeration
O B. Zone of saturation
O C. Impermeable rock
O D. Water table

What would happen to kenya's pyramid if there was a rapid decline in its: a) birth rate b) death rate

Which property of soil depends on the size of particles? color odor temperature texture

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