Population age structure is a summary of the number of individuals of each age in the population. An example is, In 2002, 30% of the worlds population was under 15 years old. <span />
Inside the chloroplast (a membrane-bound organelle present in plant cells)
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A. By burning coal in a boiler to produce steam. The steam produced, under pressure, flows in a turbine, which spins a generator to create electricity
B. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity
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The earth would no longer have the mobile surface it has now, gradually eroding flat and water-covered. The sea might eventually evaporate into space or freeze.
