At the end of the Cretaceous, a mass extinction event caused the dinosaurs to go extinct. Many scientists cite the impact of a large asteroid as the cause, but mounting evidence suggests that rapid climate change was already having a devastating effect on late Cretaceous ecosystems. What factors control climate in modern times?     All of these are correct     Thermohaline circulation and ocean currents     Convection in the atmosphere     Changes in the Earth’s orbital mechanics     Amount of greenhouse gasses in the atmosphere

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