Which can be excluded from a list of evidence that supports the claim that an asteroid colliding with Earth caused a mass extinction?)Single-celled and multicellular organisms are found in layers of rocks on Earth. The Chicxulub Crater was discovered on the Yucatan Peninsula of Mexico in 1978.Dinosaur fossils are plentiful in one layer of rock and absent in the layer above. The rare metal iridium was found in rocks above and below the line where dinosaur fossils disappeared. Pls help

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time

1. law of superposition: when there are horizontal layers of rock. the layers at the top are the youngest.

2. law of uncomformity: where one layer is much younger than the previous one, therefore creating a gap in the time record.

3. inclusion: when there is a solid stone inside of another.

4. intrusion: a feature formed when a stone is filled with magma.

hope i answered your question.