Which of the Following Is Not a True Statement About

Multiple Choice

Which of the following is not a true statement about extraterrestrial impacts?

A) Iridium has been found between the dinosaur layer and the fossils right above it
B) Iridium is a rare Earth element but is abundant in meteorites
C) After a large meteorite struck the Earth about 65 million years ago, dust and gas rose into the upper atmosphere causing a dark cloud to form that blocked sunlight
D) The least impacted organisms were microscopic algae in the ocean during the meteorite impact that occurred about 65 million years ago