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WorksheetsFossils and Dinosaurs
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
What captured the attention of Walter Alvarez in the 70's?
a)
A thin layer of dark clay
b)
A very rare fossil of Foraminifera
c)
A very rare fossil of Dinosaur
d)
A strange limestone rock
2.
Foraminifera was a marine plankton species
a)
True
b)
False
3.
What is called the thin layer of dark clay?
a)
Walter Alvarez Layer
b)
Italian layer
c)
K-T boundary
d)
Foraminifera's boundary
4.
The K-T boundary can be found in:
a)
Italy
b)
Italy and Spain
c)
Europe
d)
Almost all around the world
5.
The K-T boundary separates which two periods in Earth's history?
a)
Cretaceous and Tertiary
b)
Cretaceous and Jurassic
c)
Jurassic and Permian
d)
Carboniferous and Jurassic
6.
Which event is related to the K-T boundary?
a)
The Mammoth extinction
b)
The Dinosaurs extinction
c)
The Foraminifera extinction
d)
All of above
7.
How old is the K-T boundary?
a)
65 MYA
b)
4.5 BYA
c)
2 MYA
d)
A long time ago
8.
What is unique about the K-T boundary?
a)
The color it has
b)
It's enormous width
c)
The position in the sediments
d)
Its high concentration of Iridium
9.
What is Iridium?
a)
A common metal in the Earth
b)
A rare metal in the Earth
c)
A rare metal in the Moon
d)
A particular type of fossil
10.
Where did the Iridium in K-T boundary come from ?
a)
The explosion of a Supernova
b)
An asteroid that crashed into the Earth
c)
The Sun
d)
The vulcanism that occurred during Carboniferous
11.
why was it important to find a huge crater for Alvarez's investigation?
a)
To find the Iridium
b)
To prove the impact of a huge asteroid
c)
To prove the extinction of dinosaurs
d)
To find the fossil of the oldest dinosaur
12.
Where was the crater found?
a)
In the Yucatan Peninsula
b)
In Mexico DC
c)
In Texas
d)
In North Dakota
13.
Why can the K-T boundary be considered like a "last frontier" for Dinosaurs?
a)
They loved this layer of clay
b)
No dinosaur fossils have been found above this layer
c)
No dinosaur fossils have been found below this layer
d)
They lived in this layer of clay
14.
What was the reason why the dinosaurs disappeared after the asteroid impact?
a)
Because of the lack of sunlight
b)
Due to the enormous energy released after the impact
c)
As a result of the collapse of the food chain
d)
All the above were responsible
15.
What kind of plants resisted the catastrophic impact the best?
a)
Oaks
b)
Grass
c)
Ferns
d)
All of above
16.
Which was the main advantage of the animals that resisted the asteroid's impact?
a)
The small size
b)
They were marine life
c)
They lived in threes
d)
The protections they had
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