I believe your answer is the year 2020
In stage 1 the two rates are balanced. In stage 2 they diverge , as the death rate falls relative to the birth rate. In stage 3 they converge again, as the birth rate falls relative to the death rate. Finally in stage 4 the death and birth rates are balanced again but at a much lower level.
Answer:
Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere. Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.
<span>The correct answer is plate tectonics. The outermost shell of Earth, called the lithosphere, is partitioned into different tectonic plates (7 or 8 major ones). When a plate breaks along what are called faults, there is a release of energy, which causes seismic waves (the ground shaking). This shaking then causes several plates to rub against each other, and when they break, the earthquake results.</span>
