read this excerpt. how did figuring out the age of crystals in the deccan lava flows help scientists? it…

read this excerpt. how did figuring out the age of crystals in the deccan lava flows help scientists? it proved that the chicxulub impact had nothing to do with the dinosaur extinction. it showed that scientists had been wrong about the crystals from the deccan lava flows. it helped scientists determine that dinosaurs were not even alive at the time. it told them how long the eruptions were going on before and after the chicxulub impact. researchers determined the ages of crystals embedded in the deccan lava flows. these show that most of the eruptions began roughly 250,000 years before the chicxulub impact. and they continued until about 500,000 years after it. this means that the eruptions were raging at the height of the extinctions. this new timeline lends credence to those who doubt that the chicxulub impact was the chief cause of the extinction event.

read this excerpt. how did figuring out the age of crystals in the deccan lava flows help scientists? it proved that the chicxulub impact had nothing to do with the dinosaur extinction. it showed that scientists had been wrong about the crystals from the deccan lava flows. it helped scientists determine that dinosaurs were not even alive at the time. it told them how long the eruptions were going on before and after the chicxulub impact. researchers determined the ages of crystals embedded in the deccan lava flows. these show that most of the eruptions began roughly 250,000 years before the chicxulub impact. and they continued until about 500,000 years after it. this means that the eruptions were raging at the height of the extinctions. this new timeline lends credence to those who doubt that the chicxulub impact was the chief cause of the extinction event.

Answer

Brief Explanations:

The text states that determining the ages of crystals in Deccan lava flows showed when eruptions began before and ended after the Chicxulub impact, indicating how long eruptions lasted around the impact event.

Answer:

D. It told how long the eruptions were going on before and after the Chicxulub impact.