A layer of ash with fossils below and none above might indicate what?

A volcanic event triggered an extinction

What can be inferred from this image?

Rock layer B and C are older than rock layer A

What is the criteria for separation of time divisions on the geological timescale?

A significant event or change happened on Earth

Which of these is NOT an observation that can be made from the image?

The dragonfly lived in a very rainy ecosystem

Which is an accurate description of absolute age dating of fossils?

Carbon dating to find the exact age of a fossil

Why are time divisions on the geologic time scale not separated into equal amounts?

A new time division is based on an even or change on Earth

Fish Fossils are found in the Himalayan Mountains. What does this tell us?

The mountain range was once under water

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Geologic Timescale

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A #science Quiz to review for our #GeologicTimescale Unit Test

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Questions 14

Answers

1
A layer of ash with fossils below and none above might indicate what?
The fossils were burnt up in the eruption
A volcanic event triggered an extinction
Oceans disappearing and continents forming
A change in the temperature of the universe
2
What can be inferred from this image?
Rock layer B and C are older than rock layer A
Rock layer A is the oldest because it is labeled A
Rock layer D is brick
Rock layer C is harder than rock layer E
3
What is the criteria for separation of time divisions on the geological timescale?
A new apex preditor is introduced
A significant event or change happened on Earth
The Dallas Cowboys won a Super Bowl
Equal time of 100 million year
4
In which PERIOD were dinosaurs first introduced?
Jurassic
Paleozoic
Mesozoic
Triassic
5
Which of these is NOT an observation that can be made from the image?
Fish could not survive in the more recent fossil layer
The environment changed from Ocean to desert
The larger fish at the bottom is older
The dragonfly lived in a very rainy ecosystem
6
Which mass extinction was known as the "Great Dying?
Permian
Creteceous
Holocene
Ordovician
7
Which is an accurate description of absolute age dating of fossils?
The Law of Superposition
Carbon dating to find the exact age of a fossil
eh.. idk
A rock that is found in a lower layer than another is older
8
Why are time divisions on the geologic time scale not separated into equal amounts?
The time gets reduced by 33% each period
Scientists had their own choice when choosing the divisions
Because some animals lasted longer than others
A new time division is based on an even or change on Earth
9
Which of these fossils would be considered the oldest based on evidence?
Crinoid
Trilobite
Fern
Gastropod
10
The cause of the previous 5 mass extinctions were obvious. True/False
True
False
11
In which ERA were mammals introduced
Cenozoic
Triassic
Mesozoic
Cretaceous
12
What is used to help scientist date the age of the Earth?
Layer of Earth's crust
Rock layer formations only
Fossil record only
A mixture of all three
13
What is the primary cause for the majority of mass extinction events on Earth?
Formation of a supercontinent
Meteor or asteroid impact
When species change
Supervolcanoes
14
Fish Fossils are found in the Himalayan Mountains. What does this tell us?
The mountain range was once under water
Fish could jump very high out of water
Birds flying over the mountains would drop them
These fish could live on land at one point

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