11. If gas extraction rates do not warrant direct use or electricity generation, the gas can be flared off. 12. In general, as the extraction rate of the flour increases, so do both the protein and the ash content. 13. In the 1970s and 80s extraction rates reached per year, which was twice the replenishment rate at the mouth. 14. Open-pit coal mines usually last four or five years at extraction rates of up to a quarter-million tons a year. 15. He theorized that extraction rate plotted versus time would show a bell-shaped curve, declining as rapidly as it had risen. 16. The extraction rate for the southern portion was 1.2 m / day and for the northern portion 3.9 m / day. 17. Furthermore, heat extraction rate is the rate at which heat is actually being removed from the space by the cooling equipment. 18. Targyn Kosanov, the head of Chevron's local partner, TengizMunaiGas, said the high extraction rate was a question of economics, not ecology. 19. It has been calculated that raising the extraction rate from 75 % to 85 % saved the equivalent of forty Liberty ships. 20. The world's reserves of helium are being depleted, with US's reserves expected to end within a decade if we keep the extraction rate .