Chapter 5 Fossils Question Preview (ID: 30621)
Fossils.
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According to sceintists, both Earth and the moon are
a) about 1.6 billion years old
b) about 4.6 billion years old
c) about 9.6 billion years old
d) about 14 billion years old
Which of the following substances is not able to preserve entire organisms?
a) sticky tar
b) water
c) amber
d) ice
What type of fossils provide evidence of the activities of ancient organisms?
a) molds and casts
b) petrified fossils
c) trace fossils
d) carbon films
A hollow area in sediment in the shape of an organism or part of an organism is
a) a cast
b) a mold
c) a trace fossil
d) a petrified fossil
A solid copy of the shape of an organism is
a) a mold
b) a carbon film
c) a cast
d) a fossil record
A break in Earth's crust is called
a) an intrusion
b) a fault
c) a layer
d) an index fossil
What change is Earth's atmosphere allowed organisms to live on land?
a) a collision with a comet
b) the development of the ozone layer
c) a strong burst of particles from the sun
d) the absorption of carbon dioxide by oceans
The earliest multicelled organisms were
a) invertebrates
b) land plants
c) vertebrates
d) bacteria
Which of the following was found in Earth's first atmosphere?
a) carbon dioxide
b) hydrogen
c) oxygen
d) ozone
The geologic time scale is subdivided into
a) relative ages
b) absolute ages
c) unconformities
d) eras and periods
The half life of Carbon-14 is 5600 years. How much would be left of a 100 gram sample after 5600 years?
a) 100g
b) 75g
c) 25g
d) 50g
The half life of Carbon-14 is 5600 years. How much would be left of a 50 gram sample after 11,200 years?
a) 50g
b) 25g
c) 12.5g
d) 5g
Fossils can be preserved in
a) Ice
b) Sedimentary Rock
c) Tar pits
d) all of the above
How many grams are left of a 20 gram sample of a radioactive isotope after 2 half lives?
a) 10g
b) 20g
c) 5g
d) 2.5g
Fossils are most commonly found in ____________________________.
a) Ice
b) sedimentary rock
c) metamorphic rock
d) water
What is the type of Fossil Dating that uses rock layers?
a) Carbon Dating
b) Absolute Dating
c) Relative Dating
d) Rock Dating
The study of fossils is called_______________________
a) Biology
b) Chemistry
c) Paleontology
d) Carbon Dating
Which rock layer is always the oldest?
a) The darkest rock layer
b) The bottom rock layer
c) The layer with more ossils
d) The lightest colored rock layer
Hardened tree sap is called ___________________.
a) Coprolite
b) Carbon
c) Fossil
d) Amber
Fossilized dinosaur poop is called ________________________.
a) Coprolite
b) Carbon
c) Fossil
d) Amber
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