1.This question has not been answered completely Oldest know land animal are the
ID: 159747 • Letter: 1
Question
1.This question has not been answered completely
Oldest know land animal are the:
A. Rhynias
B. millipedes
C. Hydnoceras
Point Value: 2
2.This question has not been answered completely
Oriskany sandstones was derived from:
A. erosion of old limestones
B. erosion of old sandstones
C. erosion of old evaporites
Point Value: 2
3.This question has not been answered completely
The Caledonian belt is a twin of the:
A. northen Antler belt
B. northern Ellesmerian belt
C. northern Appalachian-East Greenland system
Point Value: 2
4.This question has not been answered completely
What highlighted mid-Paleozoic time was the explosive evolution of :
A. Fish
B. Stromatolites
C. brachiopods
Point Value: 2
5.This question has not been answered completely
The Acadian event was caused by the collision of the E. North America plate with:
A. Taconian land
B. Franklin belt
C. Avalonia microcontinent
Point Value: 2
6.This question has not been answered completely
Unusual large number of great reef complexes formed during:
A. Cambrian
B. Silurian and Devonian times
C. Ordovician
Point Value: 2
7.This question has not been answered completely
Western and northern margins of N. America had been passively sinking during:
A. Middle Paleozoic
B. Early Paleozoic
C. Late Paleozoic
Point Value: 2
8.This question has not been answered completely
One of the most primitive land plants known was:
A. Gilboa
B. Lycopsids
C. Rhynia
Point Value: 2
9.This question has not been answered completely
Marine Circulations into Michigan basin was restricted during Late Silurian by:
A. deep water landslides
B. deep sea basins
C. reef barriers
Point Value: 2
10.This question has not been answered completely
During Devonian time, Euramerica was surrounded by:
A. transform boudaries
B. subduction zones
C. divergent margins
Point Value: 2
11.This question has not been answered completely
Paleoclimate during the middle Paleozoic was warm as indicated by:
A. evaporites and reefs
B. tillites
C. dropstones
Point Value: 2
12.This question has not been answered completely
Silurian and Devonian reefs are of special interest because their significance as:
A. meteorite impact sites
B. oil traps and metallic ores
C. volcanic calderas
Point Value: 2
13.This question has not been answered completely
Unusual Silurian iron-rich sedimentary deposits found in the:
A. central Appalachian
B. south Appalachian
C. northern Appalachian
Point Value: 2
14.This question has not been answered completely
Devonian corals had about______growth lines.
A. 360
B. 700
C. 400
Point Value: 2
15.This question has not been answered completely
A classic Devonian reef complex is exposed in:
A. Bahama
B. Florida
C. windjana Gorge, Australia
Point Value: 2
16.This question has not been answered completely
The top predators in the Silurian were:
A. nutiloids
B. eurpterids
C. ammonoids
Point Value: 2
17.This question has not been answered completely
Ordovician Volcanic ash and graptolite mud within the Appalachian region reflect:
A. tectonic unrest due to convergent activities
B. sea floor spreading
C. Global cooling
Point Value: 2
18.This question has not been answered completely
Clastic wedges are characteristically associated with:
A. sea floor spreading
B. continental rifting
C. tectonic orogenies
Point Value: 2
19.This question has not been answered completely
The Ordovician collision between N. America and Avalonia defined by:
A. the Atlantic ocean
B. suture zone
C. transform faults
Point Value: 2
20.This question has not been answered completely
Idealized Ordovician sequence of ophiolite upward through flysch strata to molasse deposits represent:
A. progression from nonmarine to continental conditions
B. progression from deep-marine to non-marine conditions
C. progression from sea floor spreading to contintal rifting
Explanation / Answer
1.
Answer: B. millipeds
Explanation: Millipeds are the oldest land animal (also called warms) in the Earth’s history. The life of these animals existed about the early Paleozoic period.
2.
Answer: B. erosion of old sandstones
Explanation: Oriskany sandstones are the oldest sand stones, which were formed by erosion of old sanstones.
3.
Answer: C. northern Appalachian – East Greenland system
Explanation: The Caledonian belt situated in northwestern Europe, which has the twin of northern Appalachian – East Greenland system.
4.
Answer: A. Fish
Explanation: Fish was the dominated animal about mid-Paleozoic era. There are so many varieties of fishes born at this period.
5.
Answer: C. Avalonia microcontinent
6.
Answer: B. Silurian and Devonian times
7.
Answer: B. Early Paleozoic
8.
Answer: C. Rhynia
9.
Answer: C. reef barriers
10.
Answer: B. Subduction zones
11.
Answer: A. evaporites and reefs
12.
Answer: B. oil traps and metallic ores
13.
Answer: B. South Appalachian
14.
Answer: C. 400
15.
Answer: C. windjana Gorge, Australia
16.
Answer: B. eurpterids
17.
Answer: A. tectonic unrest due to convergent activities
18.
Answer: C. tectonic orogenies
19.
Answer: B. suture zone
20.
Answer: B. progression from deep-marine to non-marine conditions
Note: The above all answers are correct. If you need explanation form 5th question to 20th question, please post again (as a new post).
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