1.At which type of plate boundary do tectonic plates slide past each other?
A. at conservative plate boundaries**
B. at oceanic-oceanic boundaries
C. at convergent boundaries
D. at divergent boundaries
2. Geologist discovered fossils of identical spider mites from the same time period but on opposite sides of the ocean from each other. What conclusion is supported by the discovery of these fossils?
A. The locations of the fossils were once much closer to each other.**
B. The mites were extraordinary swimmers.
C. The climate was much cooler during the time that the mites lived.
D. The locations of the fossils were once vast swamp lands.
3.Geologists discovered that the largest coal deposits were formed around 300 million years ago. How did this observation support the theory of plate tectonics?
A. Around that time, those regions were located on arid plateaus in temperate regions.
B. Around that time, those regions were located near the south pole where coal would likely have formed.
C. Around that time, those regions were located in tropical climates that were partially submerged on the coasts.**
D. Around that time, it is thought that those regions were located along the ridge of a long mountain chain.
4. Where would you be most likely to find the oldest rocks on Earth?
A. in the middle of the oceans
B. in the middle of the continents
C.at the outer edges of oceanic crust
D.in the middle of the highest mountains**
Which of the following provide evidence that South America, Africa, Antarctica, and Australia were once together as one supercontinent? Select the three correct answers.
Fossils of marsupials were originally the same across South America and Australia.
Vast deposits of coal formed in regions with ancient deserts.
Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions.
5. Mountain chains match up where South America collided with Australia to form Pangaea.
A. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole.**
B. Cratons match across the edges of continents.
C. Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions.**
D.Mountain chains match up where South America collided with Australia to form Pangaea.**
E. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole.
F. Cratons match across the edges of continents.
6. Why were the fossil remains of Mesosaurus important to Alfred Wegener?
A.They proved that Earth is composed of several rocky tectonic plates.
B. They proved that Mesosaurus is extinct.
C. They suggested that the two continents where they were found could have been joined.**
D. They were the first fossils discovered in Africa and South America.
7. Which best describes paleomagnetism?
A. the study of earthquakes
B. the study of rock formations
C. the study of plate movement
D. the study of ancient magnetic fields