| A | B |
|---|
| How old is the earth | 4.5 billion |
| what dating method is the most accurate for dating a dinosaur fossil? | Radiometric dating |
| Suppose a rock sample has a ration parent isotope uranium 235 to daughter isotope lead 237 of 1:1 if Uranium 235 has a half life of 703800000- | 703800000 |
| how does understanding earths past benefit carbon capture and sequenstration research | We learn the proper placement of carbon |
| Predict what would happen to an organism if it died in a rainforest where temperatures averaged 35 degrees celcius | Its going to decompose quickly because it is in a warm wet place. |
| How is the inforamtion we get from a fossil different that what we get from a fossil record? | fossil shows what it looks like a fossil record shows where it something lived in comparison to everything else. Tells the order animals were on the earth |
| why is studying carbon capture and sea crustration important | so we know how and where to put carbon back into the ground |
| which best describes theoris that scientists have had the mass extinctions that took place during the permian and prutacious periods | change in the climate |
| why are fossils rarely found in metamorphic rock | They are formed with heat and pressure destroys the fossil |
| compare the advantages and limitations of relative dating and radiometric dating | relative-compares newer to older radiometric- tells how old something is how long ago it lived |
| Under which set of circumstances is an animal most likely to be preserved as a fossil | Animal with a hard exoskeleton is buried at a lake bottom |
| suppose you want to date a rock found in undistured layers which law will tell you which layer is the oldest | law of superposition |
| Suppose the sedementary rock layer in an area you are studying is not horizontal Using the law of original horizontality what can you infer on how they came to be that way | The layers were affected by geometric activity |
| why should we study the fossil record | to be able to see what organisms lived where. To see what they ate how the particular fossil died etc. |
| anticlimb | follows the form of the hill |
| synclilmb | rocks pushed together in a bowl shape |
| How does an isotope differ from a normal atom of an element | different number of neutrons |
| design an experiment to investigate the factors that increase decomposition rates of organic materials | add different number of worms to compost piles to see which one breaks down the quickest. Can also use temperature have compost piles in different temperatres or adding moisture Using different solutions |
| If carbon 14 has a half life of 5700 years what percent of carbon 14 would be left after 17100 | 12.5% |
| Era's are based on | dominant animals during that time period |
| paleozoic era what animal prevalant | fish |
| mezezoic era what animal prevalent | dinosaur |
| senezoic what animal prevalent | mamals. |
