Meteor Impact and Dinosaur Extinction

The video explores the extinction of dinosaurs, focusing on the T-Rex and the mystery surrounding their disappearance 65 million years ago. In 1980, scientists discovered iridium in rock strata, suggesting a meteor impact caused the extinction. This theory was initially met with skepticism until the Chicxulub crater was found in 1990, confirming the meteor impact. The video also introduces a new theory by LuAnn Becker, suggesting a meteor impact may have contributed to the rise of dinosaurs, with evidence from the Sudbury impact site.

What was one of the most notable features of the T-Rex?

• Its ability to swim

• Its ability to fly

• Its enormous size and bite force

• Its colorful feathers

What element found in rock strata led scientists to hypothesize a meteor impact?

• Iridium

• Gold

• Silver

• Platinum

How powerful was the meteor impact compared to the Hiroshima atom bomb?

• Ten billion times more powerful

• A thousand times more powerful

• A hundred times more powerful

• Ten times more powerful

Where was the Chicxulub crater discovered?

• Off the coast of California

• In the Amazon Rainforest

• Off the coast of Yucatan, Mexico

• In the Sahara Desert

What did the discovery of the Chicxulub crater prove?

• A meteor caused the dinosaur extinction

• Dinosaurs were immune to meteors

• Dinosaurs could fly

• Dinosaurs lived in the ocean

Who proposed the idea that a meteor impact might have contributed to the rise of dinosaurs?

• Albert Einstein

• LuAnn Becker

• Charles Darwin

• Isaac Newton

What did LuAnn Becker find that provided evidence for her hypothesis?

• Ancient plants

• Dinosaur fossils

• A rare molecule

• Volcanic rocks

Where did LuAnn Becker conduct her research to find evidence of a meteor impact?

• Antarctica

• Sudbury, Canada

• Siberia

• Greenland

What geological features in Sudbury indicated a meteor impact?

• Glacial formations

• Volcanic eruptions

• River sediments

• Shocked type features in rocks

How large was the meteor that struck Sudbury, according to Becker's research?

• 12 miles across

• 5 miles across

• 20 miles across

• 1 mile across