Mass Extinctions

Mass Extinction

​

Multiple Choice

How old is the Earth?

• 4.6 billions years

• 2020 years

• 4 million years

• 400 million years.

Multiple Choice

Dinosaurs became extinct

• billions of years ago

• 65 millions years ago

• 2020, when Jurassic World came out and Chris Pratt was able to put an end to it once and for all

• 2-4 million years ago

Multiple Choice

What is incorrect about shows such as the Flintstones?

• Dinosaurs were friendly towards humans

• Humans were friendly towards dinosaurs.

• That dinosaurs and humans lived at the same time. They did not.

Multiple Choice

What triggered a chain of events that eventually cause the dinosaurs to become extinct?

• Fires

• Asteroid

• Volcanoes

• Starvation

• All of the above

Multiple Choice

How big was the asteroid that hit Earth 65 million years ago?

• 10-12 km (6 miles)

• 100 feet

• 50 meters

The Dinosaurs were on there way out.

It took the Earth over 4 billion years before the dinosaurs, to create enough food for them to eat well for 165 million years. The dinosaurs were eating way beyond the “carrying capacity” of their ecosystem. It was only a matter of time before they ran out of food.

Multiple Choice

As if the dinosaurs didn't have enough problems already. what else was going on on Earth around the time the asteroid hit?

• A great deal of tectonic activity causing numerous volcanic eruptions

• The dinosaurs were running out of food, they had exceeded the carrying capacity of the Earth by eating too much.

• All of the above

Open Ended

The asteroid when it hit Earth created an ejecta cloud that blocked sunlight for several years. Why was this a problem for the dinosaurs?