Exam 3 UPDATED ACTUAL Questions
and CORRECT Answers
James Hutton - CORRECT ANSWER - Father of modern geology
Strata - CORRECT ANSWER - layers of earth
older layers at the bottom
layer "cutting through" horizontal layers are newer
Uniformitarianism - CORRECT ANSWER - natural processes as slow and uniform
William "Strata" Smith - CORRECT ANSWER - identified different strata across England
and Wales
Principle of Faunal Succession - CORRECT ANSWER - fossils follow each other through
different strata, indicating a succession through time.
older fossils found in lower strata
Body fossil - CORRECT ANSWER - mineralized bones
impressions of soft body parts
Trace fossils - CORRECT ANSWER - footprints
burrows
coprolite (dung)
Ideal fossilization conditions - CORRECT ANSWER - low acidic soil (shallow lake)
few micro organisms (bog)
, dry (mountain top, desert)
sedimentation to bury body (air, volcano, water)
Earth's age - CORRECT ANSWER - 4.6 billion years
Life on Earth age - CORRECT ANSWER - 3.5 billion year
Precambrian era - CORRECT ANSWER - 4.6 bya to 550 mya
Paleozoic era - CORRECT ANSWER - 570 mya to 230 mya
early life
mesozoic era - CORRECT ANSWER - 230 mya to 66 mya
middle life
age of dinosaurs
first birds and mammals
Cenozoic era - CORRECT ANSWER - 66 mya to present
new life
age of mammals
K-T boundary -> extinction of dinosaurs
7 Epochs of the Cenozoic - CORRECT ANSWER - Paleocene
Eocene
Oligocene
Miocene
Pliocene