level: Level 1
Questions and Answers List
level questions: Level 1
| Question | Answer |
|---|---|
| oretelius | noticed the similarity in the coastline of some continents |
| alfred wegener | proposed the CDT |
| pangea | supercontinent |
| "all earth" | meaning of pangea |
| cracks | tectonic plates |
| oceanic crust | more dense, more basalt |
| continental crust | less dense, mostly granite |
| continental jigsaw puzzle, fossil evidence, rock type evidence and climate | evidences of CDT |
| he couldn't explain why the continents are moving | why did the CDT get rejected |
| proposed an explanation to CDT by using SFS | harry hess and robert dietz |
| continent | which rocks are older, one in the seafloor or one on the continents? |
| 500 years | the earth changes polarity every _____ |
| greek for carpenter | tekton |
| circulation of heat in the mantle | convection current |
| convergent boundary | destructive tectonic movement |
| convergent boundary | mountains, volcanoes, trenches, and earthquakes |
| moving away from each other | divergent |
| divergent boundary | mountains, volcanoes, trenches and earthquakes |
| transform boundary | doesn't destroy or create anything |
| to flow | rheo |
| the branch of physics that studies the deformation and flow of matter | rheology |
| asthenosphere, lithosphere, physical charcteristics and how they respond to stress | mechanical definition of the earth's structure |
| crust, mantle, core | chemical definition of the earth's structure |
| thinnest and outermost layer | crust |
| lithosphere | crust and uppermost part of the mantle |
| mantle | thickest layer in the earth |
| inner core | solid Fe and Ni |
| outer core | molten Fe and Ni |
| ability of a solid to flow | plasticity |
| asthenosphere | responsible for plate movement |
| lower mantle | mesosphere |
| 4.5 Billion years old | how old is the earth? |