Which best supports the evidence that an asteroid collision may have caused caused the extinction of dinosaurs?(1 point)
Responses
Many dinosaur skeletons are found in one particular rock layer.
Many dinosaur skeletons are found in one particular rock layer.
Rare metal on Earth called Iridium is found in layers where dinosaurs disappeared.
Rare metal on Earth called Iridium is found in layers where dinosaurs disappeared.
Dinosaur fossil remains are found at the bottom of a body of water.
Dinosaur fossil remains are found at the bottom of a body of water.
Bodies of dinosaurs are only found in craters where asteroid collided.
Rare metal on Earth called Iridium is found in layers where dinosaurs disappeared.
The best support for the evidence that an asteroid collision may have caused the extinction of dinosaurs is: "Rare metal on Earth called Iridium is found in layers where dinosaurs disappeared."
The best response that supports the evidence that an asteroid collision may have caused the extinction of dinosaurs is:
Rare metal on Earth called Iridium is found in layers where dinosaurs disappeared.
To explain how this supports the theory, scientists have found a high concentration of the element iridium in the layers of sediment that coincide with the extinction event of the dinosaurs. Iridium is very rare on Earth's surface but is commonly found in asteroids and meteorites. This discovery suggests that a massive asteroid or meteor impact occurred around the same time as the extinction event, possibly causing the catastrophic event that led to the extinction of the dinosaurs. By analyzing the elemental composition of the sediment layers, scientists can determine the presence of iridium and use it as evidence for an asteroid collision as a potential cause of the dinosaur extinction.