Plate tectonics theory wasnt accepted because no one could adequately answer what question?
Question 2
2.
In the late sixteenth century, ______________ noted that by carefully considering the coastlines of the atlantic ocean, it appeared that the Americans had been torn away from Europe and Africa.
Question 3
3.
Who proposed a "sinking of the land between continents" ?
Question 4
4.
What year was the theory of "sinking" put forth?
Question 5
5.
_______________ proposed the contienents were together at one point because of found fossil records
Question 6
6.
In __________ Lord Kelvin help conduct Bathymetric surveys unvieling an extensive sumbarine moutain range.
Question 7
7.
Draggable item
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Corresponding Item
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Question 8
8.
Question 9
9.
Question 10
10.
Who proposed mantle convection?
Question 11
11.
Who had her work stolen on the expansion of rift valleys?
Question 12
12.
Who confirmed this expansion of the rifts using magnetic striping?
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Why are old rocks hard to find?
Question 17
17.
1.8 Billion years ago, the supercontinent was called __________ and began the Boring Billion
Question 18
18.
Match the scientist to their discoveries
A Mohorovicic
Layers of the Earth
Emil Wiechert
Core of the Earth
Joseph Barrell
Crust-mantle boundary
RD Oldham
Lithosphere and Asthenosphere
Continental drift was supported by rock types, geological structures, and fossils.
True
False
Alfred Wegeners hypothesis was that the plates moved because of
mantle convection
centrifugal forces
wind blowing really hard when we're not looking
Gravity affects the plates by
pushing the ridges
pulling the slabs
pushing the paper
pulling the rabbit
Why were the oceans not hospitable?
low in oxygen, high in sulfur
low in water, high in acid
low in acid, high in water
low in sulfer, high in oxygen
The mantle was just too hot, that why we had a supercontinent early in Earths history.
True
False
What other planets have our type of plate tectonics?