Explain why an ecological pyramid is smaller at the top than at the bottom.

The covers all of earth like a thin shell,but it is not a solid sheet of material.it is broken up into several large sections and many smaller ones. fill in the blank.

Deep-ocean and are created by convergent boundaries of an ocean and continental crust

The mechanization of agriculture has resulted in all of the following excepta increased productionb. an increased ability to feed growing global populationsc. decreased erosion as a result of advanced planting machinesd. increased employment in the farming industry