science chapter 3

fossilized tracks & other evidence of activities of organisms are what?

• Body fossils
• Mineralized remains
• Paleoecological data
• Trace fossils

in what sort of environment does coal form?

• Coal forms in dry, arid deserts.
• Coal forms in swampy regions.

• Coal forms in deep oceanic trenches.
• Coal forms in environments.

the process of breaking down is called what?

• Condensation
• Evaporation
• radioactive

  decay

• Decomposition

principle of uniformitarians

• The principle of uniformitarianism claims that 'the future is the key to the present.'
• The principle of uniformitarianism states that 'the past is the key to the present.'
• Uniformitarianism suggests that geological processes occur at different rates over time.
• Earths processes occurring today are similar to those that occurred in the past.

relative age.

• Relative age refers to the age of an object in isolation.
• the approximate age of a rock or fossil that is determined by comparing it to other rocks or fossils to determine if it is older or younger.

• Relative age is the exact age of an object.
• Relative age is determined by the object's physical properties.

what particles make up an atoms nucleus?

• protons & electrons

• Quarks and leptons
• Photons and neutrinos
• Electrons and positrons

absolute age is?

• the age in years of a rock or other object.

• The estimated age based on surrounding materials.
• The time it takes for a fossil to form.
• The age of a rock layer compared to another layer.

gaps in rock sequences are ?

• faults
• layers
• joints
• unconformities

radiometric dating

• A technique for determining the age of materials using radioactive decay.
• A technique for estimating the weight of ancient artifacts.
• A process for analyzing chemical compositions of fossils.
• A method for measuring temperature changes in rocks.

how are trace fossils different from fossils that are remains of an organisms day?

• Trace fossils differ from traditional fossils as they represent the activity of organisms rather than their physical remains.
• Trace fossils are always larger than traditional fossils.
• Trace fossils do not have DNA

• Trace fossils contain DNA from the organisms that created them.