question 1 - 3\nscientists think that about 65 million years ago, an asteroid struck mexico and created a…

question 1 - 3\nscientists think that about 65 million years ago, an asteroid struck mexico and created a huge cloud of dust in the atmosphere. the dust contained iridium, an element found in asteroids. the dust cloud blocked the sun, killing most of the plants on earth. plant - eating dinosaurs starved. without herbivores to eat, meat - eating dinosaurs died, too. scientists studied rock layers from the time of the strike to confirm their theory. which statement below best supports the theory that an asteroid impact could have contributed to the extinction of the dinosaurs?\na rock layer containing fossils of human beings.\na rock layer containing greater than usual amounts of iridium.\na rock layer containing no iridium.\na rock layer containing fossils from 100 million years ago.

question 1 - 3\nscientists think that about 65 million years ago, an asteroid struck mexico and created a huge cloud of dust in the atmosphere. the dust contained iridium, an element found in asteroids. the dust cloud blocked the sun, killing most of the plants on earth. plant - eating dinosaurs starved. without herbivores to eat, meat - eating dinosaurs died, too. scientists studied rock layers from the time of the strike to confirm their theory. which statement below best supports the theory that an asteroid impact could have contributed to the extinction of the dinosaurs?\na rock layer containing fossils of human beings.\na rock layer containing greater than usual amounts of iridium.\na rock layer containing no iridium.\na rock layer containing fossils from 100 million years ago.

Answer

Brief Explanations:

The theory is that an asteroid impact led to dinosaur extinction, and asteroids contain iridium. A rock - layer with greater than usual amounts of iridium would suggest an asteroid impact as it provides evidence of the presence of asteroid - related material at the time of the extinction event.

Answer:

A rock layer containing greater than usual amounts of iridium.